Whilst fucking her from behind against a wall, pull out, stick it up her shitter, and watch her try and scramble up the wall. That's what a Gecko fuck is.
by iamalizard December 26, 2011

by Jack the Flippa August 3, 2009

To blow a snot rocket on a guy/girl's face while they are giving you a blow job and then cum on top of the nasal projectile.
Guy A: Last weekend I totally gave this chick a green gecko.
Guy B: You're fucking foul. I'm never fucking that chick again.
Guy B: You're fucking foul. I'm never fucking that chick again.
by Tabbycat32483 May 13, 2006

No matter how many times you wipe your ass, the little “gecko head” continues to leave shot on the toilet paper.
by Sunken truths November 8, 2019

When a woman is face against the wall with her hands above her and the man is having sex from behind. His dick slips out and goes up her ass, making her freak out and climb the wall like a gecko.
Hey Frank, Jennifer was taking my cock so good last night so I gave her a reverse gecko. Man she climbed that wall like a freakin lizard!!
by Stinkaman March 27, 2016

A fucking massive, girly boy cock just waiting for you to suckle on it and to leave hot cum dripping out of your ass.
person 1: "Yo Steve, have you seen Ben's pet gecko yet?"
person 2: "Yeah, I saw it last night. Super cute."
person 2: "Yeah, I saw it last night. Super cute."
by gabble gospel March 10, 2020

by Tripleman January 8, 2020
