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
by I, Wreckerrr October 14, 2016
From (Or inspired from) The Tom Green song "Pet names for Genitalia"
A penis.
Because it slaps your knees, if you're horribly unproportioned.
A penis.
Because it slaps your knees, if you're horribly unproportioned.
by Springloaded June 06, 2004
/nē/ /slapper/
Noun
1. A joke; typically a pun or otherwise regarded “Dad-Joke”, the humour of which prompts an audible slap-of-the-knee from one or more of the parties involved.
Noun
1. A joke; typically a pun or otherwise regarded “Dad-Joke”, the humour of which prompts an audible slap-of-the-knee from one or more of the parties involved.
Ron: “So me and the wife were down in Mexico last month, and she twisted her ankle at Salsa Night”.
Gord: “Oh no, what did you do?”
Ron: “I called ‘Nine-Juan-Juan’”.
*Audible laughter and slapping-of-the-knee*
Gord: “Jesus Murphy, Ron, you really had me going there for a second. Now that’s a Knee-Slapper”.
Gord: “Oh no, what did you do?”
Ron: “I called ‘Nine-Juan-Juan’”.
*Audible laughter and slapping-of-the-knee*
Gord: “Jesus Murphy, Ron, you really had me going there for a second. Now that’s a Knee-Slapper”.
by be4nz1111 August 20, 2023
A saying a person does when another person says an unfunny joke but you're being sarcastic about it, indicating it was the funniest joke you have ever heard in your life. (being sarcastic if you didn't get that)
"Hey Billy, why did the chicken cross the road?... TO GET TO THE OTHER SIDE!" *laughs hysterically*
"What a knee slapper, Timmy!" *slaps knee*
"What a knee slapper, Timmy!" *slaps knee*
by lovelyleftorgan777 May 05, 2022
Something so hilarious it makes u slap your knees. Funny moments that cause uncontrollable laughter.
My niece and I seen a man with a car dealership flag on his bicycle chased by a bunch of Chihuahuas, it was such a knee-slapper!! Hahahaha
by MainRain October 14, 2018
by Unifart April 02, 2021