What is Isf?
1.
Insufficient Funds (lack of money)
Bobby Chong is looking to buy 2 doughnuts for 50 cents each. The cashier lady says that will be; a dollar seven total. Bobby Chong whips out the B.C(Bank Card), swipes, punches in the pin and waits for the thumbs up for approval then 3 letters in Capitals show up on the machine; ISF. Cashier shakes her head in shame and pitty. Bobby curses and walks away for the counter doughnutless; and realizes that he will never step foot in another Tim Hortons again due to ISF...$1.07 damn. How embarrassing.
2.
icky sexual feeling; the kind of feeling you get when something makes you uncomfortable to think about or see, i.e. incest, your English teacher naked, etc.
That creepy guy who works with me looked me up and down and said, "Nice shirt." and I got total ISF.
See
3.
Its So Funny
isf that ur gay
4.
Its So Funny
isf that ur a MOFCAKE
