The most badass rapper ever. Member of the recently formed "Rat Slap and the Rat Pack" an underground freestyle rap group of ethnically diverse college students, rumored to have been started late at night in a college dorm. Their first album, predicted to be released in 2013 is under the working title, "Rat Trap."
by thisonetimeatbandcamp April 23, 2012

(verb) the act of slapping your forehead in shock upon receipt a $5000 mobile broadband bill when you thought you had signed an unlimited use contract
An Oklahoma woman who bill slapped herself so hard that she had to visit her local emergency room, has filed a lawsuit against AT&T (NYSE: T) and RadioShack (NYSE: RSH) after she purchasing a netbook with a 3G data plan and receiving a $5,000 bill for exceeding her monthly data cap.
http://www.informationweek.com/news/telecom/business/showArticle.jhtml?articleID=215600328&subSection=News
http://www.informationweek.com/news/telecom/business/showArticle.jhtml?articleID=215600328&subSection=News
by GeorgeDawes March 12, 2009

A: Holy shit, Ryan just got yoon slapped on the arm!
B: Look, he's holding his arm and screaming his head off in pain!
B: Look, he's holding his arm and screaming his head off in pain!
by dskfhsad;fh;a December 6, 2006

Today is the day you can slap your friends. You can slap your friends shorter than you at 1:00-12:00 am, and friends taller than you 1:00-12:00 pm.
small boi and tall boi: it's today
tall boi: *slaps small boi at 9:00 am on Slap Day*
small boi: *slaps tall boi at 2:00 on Slap Day*
tall boi: *slaps small boi at 9:00 am on Slap Day*
small boi: *slaps tall boi at 2:00 on Slap Day*
by a total e-girl November 13, 2019

by Thotie exterminator June 6, 2018

Act of masturbating.
by A.J. Gonzalez May 8, 2005

A granny slap happens when a grandmother approaches you and pinches your cheeks so hard that the skin literally slaps against your face when released. It is usually accompanied by much cooing and statements that include but are not limited to: "Oh, you've grown so tall," or, "You're my little sugar bunny!"
John: Did you see that mark on Jack's cheek?
Jill: Yeah, he totally got granny slapped yesterday. His sister told me all about how his skin snapped into place.
Jill: Yeah, he totally got granny slapped yesterday. His sister told me all about how his skin snapped into place.
by thelastcard November 22, 2011
