BIYF

meaning "Balls In Your Face"
Can be used as a greating, fairwell or state of tranquility.
Can also be used at any time found fitting.

Jenny: "Hey Tom, how ave you been?"

Tom: "BIYF!"

by assmasterupyabutt March 19, 2011

biyf

meaning - "boobs in your face"; an expression used to wish good luck, congratulations, to wish good things upon a person, or a general positive greeting

Hey Jim, I hear you graduated! Biyf!

by w00tsean July 29, 2007

biyf

Abbreviation for Boobs In Your Face

Used online as a greeting, goodbye, or just in general conversation during instant messaging, text messaging, etc..

Generally a positive thing to say to a guy, or anyone who has an affinity for breasts.

"Ok see you tonight. biyf"

by Jim007 July 29, 2007