Weak Knees

You and your partner engage in intense rough sexual intercourse stood up (preferably over a kitchen table) once the woman begins to climax her legs will shake, tap the back of her legs to make her fall over, can be used as an embaressment technique

Mark: I got gertrude back by giving her the weak knees

by CHGC May 2, 2009

Weak in the knees

Being weak in the knees means whenever you see something attractive or after you have sex and/or cum your legs feel weak

Hey do you see that hot girl over there?!

Yeah look at her fat ass

Man she’s got me weak in the knees

by Billybobjr69 November 6, 2018

weak in the knees

What one says/feels after they had amazing sex and/or a splendid fap session, the feeling is so intense you can barely stand up, thus weak in the knees.

Guy "Dude, you all right? your legs are wobbling"

Dude "Yeah I'm all right, I just received the best blow job from my gf; made me weak in knees "

"Damn, I jizzed so hard last night my legs couldn't support me for the next 3 minutes."

"Damn, I banged my gf so hard last night I thought my knee caps would explode"

weak in the knees

by SirCumsALot April 13, 2013

knees weak arms are heavy

Moms spaghetti

yo ted what you want? Knees weak arms are heavy

by SpaceManZim November 6, 2017