Top Definition
An American mixed martial artist with the UFC as well as a inactive professional and former amateur wrestler. He is well known for his professional wrestling career in World Wrestling Entertainment (WWE).

Before gaining prominence in WWE, Lesnar was an accomplished amateur wrestler, and won the 2000 NCAA wrestling championship. In WWE, Lesnar was the 2002 King of the Ring, and won the 2003 Royal Rumble. He is also a three-time WWE Champion, and is the second youngest WWE Champion in history.

After leaving WWE in 2004, Lesnar pursued a career in the NFL. He played for the Minnesota Vikings, before being cut from the team for no-showing at practices due to injuries.

Lesnar returned to professional wrestling at the end of 2005, and joined New Japan Pro Wrestling, where he won the IWGP Heavyweight Championship in his first wrestling match since leaving the WWE. He was stripped of the title in July 2005, although he held the physical belt until June 2007.

Lesnar started a career in Mixed Martial Arts, and had his first match, in June 2007. He has since signed with Ultimate Fighting Championship and faught Frank Mir, losing via kneebar. He then faught Heath Herring and beat him via decision. Brock Lesnar is about 6'2'' and 265lbs. Pure muscle. He is a beast.
Brock Lesnar will rip ur f'in head off.
by Jeremyqwerty August 30, 2008

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The joke of the MMA world. Should not be appreciated and is hazardous to one's health due to high fat content
Brock Lesnar vs. Frank Mir 1
by Raivena November 20, 2009

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Your favorite word on a white mug.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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A MMA Heavyweight champion who fights at 280 pounds and is known for his incredible strength and speed. He is an ex-college wrestler and ex-professional wrestler who has taken the MMA world by storm with a series of wins against some of MMA's best.
Fedor is afraid to fight Brock Lesnar because he doesn't want to lose.
by Jim Thorpe August 04, 2009

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Your favorite word on a white mug.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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A badass pro wrestler. Known for his muscles. First off, Raivena's an idiot for mocking this guy. Raivena, the user, wouldn't even last 5 minutes in a ring with BL. Here's who Brock has defeated. Randy Orton, Ric Flair, Hulk Hogan, Dwayne The Rock, John Cena, Big Show, Chris Jericho, Kurt Angle, Triple H, CM Punk, Seth Rollins, Roman Reigns, Undertaker and Dean Ambrose. Match with the Undertaker was significant since he ended the Undertaker's streak. He's the 1 in Undertaker's 21-1 record. Does that sound like a bad wrestler to u. He is badass in wrestling pro. MMA career has been good as well with him defeating a pro MMA fighter. Unlike CM Punk, who lost to Mickey Gall in minutes. He's an awesome wrestler folks. Watch his matches on youtube for fun.
Person 1: Did u see Brock Lesnar beat Hulk Hogan in 2002.
Person 2: Yes, it was awesome to see.
Person 1: Brock is a future hall of fame professional wrestler.
by Fabulous Max March 18, 2017

The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Lotsa space for your liquids.

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The Urban Dictionary Mug

Your favorite word on a white mug.

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The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

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