Stands for Major League Baseball. A North American organization consisting of 30 baseball teams (29 of them are in the U.S. and one is in Canada) and two leagues, the American (AL) and National (NL). The National league is the older of the two leagues and is sometimes refered to as the "Senior Circuit"; The "Junior Circuit" refers to the American League. Each year is concluded with the World Series where the winner of the National League pennant and the winner of the American League pennant play each other in a best of 7 game series.

Notable Teams: New York Yankees, St. Louis Cardinals, Los Angeles Dodgers

Notable Players: Babe Ruth, Willie Mays, Stan Musial, Cy Young, Hank Aaron

The St. Louis Cardinals won last year's MLB World Series.
by Geoffrey G April 1, 2007
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Major League Baseball
30 Teams:
1. Arizona Diamondbacks
2. Atlanta Braves
3. Baltimore Orioles
4. Boston Red Sox
5. Chicago Cubs
6. Cincinnati Reds
7. Cleveland Indians
8. Colorado Rockies
9. Chicago White Sox
10. Detroit Tigers
11. Florida Marlins
12. Houston Astros
13. Kansas City Royals
14. Los Angeles Angels
15. Los Angeles Dodgers
16. Milwaukee Brewers
17. Minnesota Twins
18. New York Mets
19. New York Yankees
20. Oakland Athletics
21. Philadelphia Phillies
22. Pittsburgh Pirates
23. San Diego Padres
24. Seattle Mariners
25. San Francisco Giants
26. St. Louis Cardinals
27. Tampa Bay Devil Rays
28. Texas Rangers
29. Toronto Blue Jays
30. Washington Nationals
Out of all the teams in the MLB, my favorite is the New York Yankees.
by Sports freak April 24, 2005
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Major League Baseball, a league that consists of 30 teams
MLB's biggest game is the world series
by Joe C August 29, 2004
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Milissa: FML!!
Meaghan: MLB!!
Milissa: STFU!
Meaghan: OMG!
by bloody1 March 25, 2009
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Hold these MLB’s Bitch!!!! Juuu hurd
by Yousmackone September 6, 2019
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A pack of autos that has three main cars: Mercedes-Benz, Lexus, BMW. Multiple packs are usually noticed in upper-class areas and neighborhoods.
Damn, I was driving down Mockingbird Ln. and there was a shitload of MLB.
by JDub23 October 17, 2006
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1. A poorly formatted league with the dumbest fans and dumbest officials that makes it the worst sport ever. It's consisted of 162 long tedious games with no time limit, whereas the "postseason" only lasts about a week long. The objective of the game is to hit a ball with a bat and guide your fellow Dominicans to home plate without getting out. But the real objective is to make the most money than any other player. Players are allowed to create buzz by talking trash, being a distraction, juicing up, and any other idiotic actions to attract the media.

2. "America's favorite past time".

3. "The Dominican Republic and Puerto Rico's favorite present time".

4. A sports league made up of 29 teams and one over-dramatic news tycoon (NYY).

5. An overrated drama queen of a sport. They care so much that Bud Selig pays ESPN to cover the MLB 24/7, even during the offseason. Whenever ESPN doesn't highlight any games, they whine like little bitches about the Yankees, the Red Sox, the Mets, Manny Ramirez, Ozzie Guillen, steroid scandals, retired players in investigations, and any other bullshit they can think of.

6. A method to make a load of money by barely doing anything at all. Such notable activities include standing on a grass field, sitting in a dugout, running 90 feet, running 10 feet to grab the baseball, standing on a small white bag, doing a couple of silly movements to throw the ball really fast to a teammate standing just 50 feet away, and many many more adrenalating activities. Of course, those other players don't get much money for running back and forth every play trying to swerve past other guys and lob the ball in an orange ring, or trying to carry the ball for about 300 feet at the expense that you get knocked down every play. Sure, I believe you.
1. The MLB sucks.

2. US Citizen: I used to like the MLB. Wow, was I such a stupid, stupid kid.

3. Islander: Like baseball is our religion! Every day we go to the church to pray to Babe Ruth.

4. Yankee fan: The Yankees are the best team EVER! Like they land all the good players and shit, and I'm oblivious to why that is. But I heard they are all great in bed, according to ESPN, so that must make them great players!

5. ESPN anchor: Did you know that there are 5 pitchers that homered in a 1-0 game? Just how stupid is this stat?! Nawmally good!

This just in, Sportscenter ratings sink 100% after covering their 30th straight hour on A-Rod's personal crisis.

6. Derek Jeter: LOL Hockey sucks! Even though I won't last three minutes in an ice rink. I have no penis.
by Smart American Male May 4, 2009
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