the art of bending one over the knuckles (the things that hold the train togather) of a stopped train and screweing the shit out of them and finishing before the train takes off and kills you.
by Uncle chester the molester March 2, 2009

by L1feLus7 April 1, 2009

This happens when a person that you are finger fucking .....with one finger.....your finger fucking finger....gets off when you only stick one knuckle in and they orgasm.
by JoeyBomm July 11, 2020

by Britt Charnock March 6, 2017

by jonesinj January 1, 2012

noun: knuckle-head
a stupid person.
adjective: fucking
used to emphasize or express annoyance with someone or something.
noun: chuckle-head
a stupid person
a stupid person.
adjective: fucking
used to emphasize or express annoyance with someone or something.
noun: chuckle-head
a stupid person
Going opposing traffic with lights and sirens whilst the oncoming traffic does not pull to the right and stops directly in front of you with a deer and a head lights look.
"Man that guys a KNUCKLE FUCKING CHUCKLE HEAD"
"Man that guys a KNUCKLE FUCKING CHUCKLE HEAD"
by doitonlan_ February 21, 2021

A person so dumb they can't tell the diffrence of a penis or finger and think the knuckle on a finger is the end of the dick head.
That bitch was so gross I couldn't get hard. So I fucked her with my finger and told her I have a small dick. She said the end of my head was big she is so dumb what a fuck knuckle
by Rawdog75 January 13, 2025
