1 definition by fuck up shit bag

1. A conservative way of referring to someone as your fuck buddy.

2. Another way to describe someone you are having sex with or messing around with but doing it discretely.

3. Usually one or both parties referring to each other or being referred to as good friends are in relationships themselves; however, do not want to make it public.
EX1.
Dude: There is nothing wrong with Tasha having a "Good Friend"

EX2.
Dude (1): Are you fucking Tasha you know she is married?

Dude (2): Someone has to while her husband isn't around beside she has lots of "Good Friends"

EX3:
Kim: Have you noticed Tasha has been going to Church?

Tim: Yeah she only goes because her husband will be asleep by the time its over then she hangs out with her "Good friend" Tyler.

Kim: I guess girls have to have someone to fuck, wait I mean “Good Friend” while there husbands are overseas.

Tim: Thank God for Church's the perfect excuse.... lol
by fuck up shit bag November 5, 2010
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