by SALKFJsalfk February 18, 2008
by Erak22 September 28, 2009
A blunt that is so large, or otherwise so potent, a hit causes you to slap your knee and say "GAH'DAM."
by The Pizza Man March 30, 2006
by JarMa13 December 04, 2018
Guy 1: what do you call cheese that isn't yours?
Guy 2: Idk what?
Guy 1: nacho cheese
Guy 2: now that's a knee-slapper!!!
Guy 2: Idk what?
Guy 1: nacho cheese
Guy 2: now that's a knee-slapper!!!
by billystiggle December 10, 2011
something really funny (from the slapping of the knees and hitting the floor associated with laughter.
by The Return of Light Joker August 03, 2008
1) An otherwise unfunny, awkward, or just stupid joke. Usually a dad pun or something of the sort. Said after this to show that it should have never been said in the first place. Invented by hillbillies and rednecks when sitting on their porches, slapping their knees when somthing funny happens.
2)said after something funny and stupid happens.
2)said after something funny and stupid happens.
1)
dumb guy:"Two peanuts are walking down the street, and one of them was assaulted!"
normal guy (slaps knee and fake-laughs):"Wow! That sure was a knee slapper!"
2)
guy skates and falls off rail, hurting his knee and friend laughs.
Later they are talking and laughing about a dumb joke.
friend:"wow that sure was a knee slapper!" (slaps knee)
skating
guy:"yea!"(slaps knee very hard, and dislocates it from the earlier accident)
friend:"no that's a knee slapper!"
dumb guy:"Two peanuts are walking down the street, and one of them was assaulted!"
normal guy (slaps knee and fake-laughs):"Wow! That sure was a knee slapper!"
2)
guy skates and falls off rail, hurting his knee and friend laughs.
Later they are talking and laughing about a dumb joke.
friend:"wow that sure was a knee slapper!" (slaps knee)
skating
guy:"yea!"(slaps knee very hard, and dislocates it from the earlier accident)
friend:"no that's a knee slapper!"
by dhawk123 March 08, 2009