Whatever information that had been told to you, enters your mind and "exits", causing you to forget immediately/after sometime. Often used with ears.
Teacher: Tom, what is the solution to this problem?
Tom: Don't know.
Teacher: Are you even paying attention in class for the past 5 minutes?
Tom: Yes but its 1 in 1 out right now.
Teacher: What do you mean?
Tom: Whatever you said, enters through 1 of my ears and exits throughout the other.
Tom: Don't know.
Teacher: Are you even paying attention in class for the past 5 minutes?
Tom: Yes but its 1 in 1 out right now.
Teacher: What do you mean?
Tom: Whatever you said, enters through 1 of my ears and exits throughout the other.
by joel91 September 5, 2010

by Jim Cal July 29, 2008

Hey 1 for 1?
by Gujgfrtyum December 26, 2017

by I like you cut g February 10, 2021

A 1 plus 1 is a particularly easy girl. Can also be referred to as 'the village bicycle'.
Let's face it, there really isn't anything easier than 1+1 now is there?
Let's face it, there really isn't anything easier than 1+1 now is there?
Bob: "So, you think I should go out with Suzy?"
Steve: "Oh yeah, you'll totally get some that girl is a real 1 plus 1."
Steve: "Oh yeah, you'll totally get some that girl is a real 1 plus 1."
by Lochnivar November 14, 2009

See hete. Derived from Hetero to the MINUS 1. Meaning the inverse of heterosexual and, therefore, homosexual.
by Drew October 7, 2003

A very disturbing video involving a naked man inserting a small jar into his ass by sitting on it. The jar breaks, and the rest of the video depicts his attempts toward removing all glass shards from his ass while hemorraging blood like a running bathroom sink.
"Did you see that video '1 guy 1 jar'?"
"Yeah, it was fucking gross as hell! He must've had a real hard time shitting after that."
"Yeah, it was fucking gross as hell! He must've had a real hard time shitting after that."
by devil1 January 3, 2009
