Inf - Short for a infrared beam

Usually in slang terms if some one says that have a inf or inf beam they mean that have a infrared beam on their gun.
He put the red dot on his head...

50 cent - "What you know about AK's and A-R 15's Equipped wit night visions,shell cases,and Inf beams"
by Stephen December 30, 2005
Short for infimum. In mathematics, the infimum of a set is the greatest element (not necessarily in the subset) that is less than or equal to all elements of the subset. Also called greatest lower bound.
The infimum of the set of positive real numbers is 0, even though 0 is not positive. This is because 0 is the biggest number that is less than every positive number.
by supinf July 18, 2010
1. What happens when you shift your hands over one space from normal and attempt to type "omg".

2. A plaintext encoded file that is often used to edit startup options in applications and games.
1. inf rgR;A qwainw

2. By editing the Deus Ex .inf you could disable CD checks.
by skullwolf April 17, 2006
see also infy and infi

a short slang term for infinity
omg, you have inf barns
by platy January 6, 2004
For inf, 2 plus 3 is 5, dumbass.
by farside April 15, 2005
idiotic noob froober. its a word for kool people, to call stupid people.
Stupid:i don't understand this..can you explain it again?
Smart:ITS SO SIMPLE!! YOU INF!!!

by rachie+megie February 2, 2008
Used in EF (Elite Force) (A video game), it is short for infiltrator, and can also be said as infil
Plural: Infs, or infils.
Damn those infils!
Everyone gang up on the inf!
WHY did Raven put them in this game?!?!?!
by Chris L. December 27, 2003