To tell someone you will contact them via Facebook. It's an abbreviation of "FacebOOK YOU". Use with caution as fook has alternate meanings.
"Hey, Charlie, I'll fook you once I am done with dinner." Similar to "I'll email you later" or "She'll text you when she arrives".
ayon kay masilver ika-20 ng Agosto, 2010
expessive used to ask someone to leave your space
please fook off
ayon kay Sapphire ika-25 ng Marso, 2004