Self-restraint from all thought or activity with males.
I haven't thought about guys in like 24 hours. I swear I am on like a boyfast.
by chinniewinnie December 02, 2008
A period of time during which someone gives up crushing, dating or flirting with all boys (with the exception of celebrities)
My last boyfast was caused a rough break up.
by CarrieBellani November 10, 2014