Sexual act involving masturbating a girl, then having hand fall into the vagina without much effort. Man then begins to make thumb war motions inside girl. Works best on a loose girl.
I was totally getting it on with Darcy, and I put my hand down there, but it was a total one man thumb war not even a minute in.
by Kegan Godbey September 7, 2005

A slang term for a sex position. Similar to Double Dicking, a one man double dicking is where a man (or Shemale) uses his own penis as well as a strap on to perform double dicking.
My pal nathan was busy that night, so i pulled out the old strap on and gave her a one man double dicking
by boderickp December 13, 2008

by Dio.jefe August 16, 2023

I hate this bar because you always have to wait in line for the bathroom. That's the major disadvantage of a one man floor plan.
by xenosapien September 12, 2013

The dubstep act of 1 man stuffing an armies worth of military might into a woman’s vagina and making them all fire at the same time.
by DankMan36k October 26, 2019

This one is for people that don't like to share or play with others. Usually leap frog consists of people jumping over one another with the ultimate goal of reaching the front. In one man leap frog, the anus is exposed and the goal is to jump into yourself, in effect, you are trying to get your male member inside yourself.
by Talent Show coordinator April 20, 2009

the act of giving one a swirlie however instead of the traditional 2 or three bullies its only one bully holding the kid up and flushing at the same time
by Drew April 14, 2003
