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A SGF does not let his girlfriends make poor decisions especially when the sitution involves a guy.
by Gracie_Adler March 16, 2010
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May 5 Word of the Day
A catch all word to describe anything that is basic, uncool or untrendy. According to The New York Times, "cheugy (pronounced chew-gee) can be used, broadly, to describe someone who is out of date or trying too hard."

Things that are cheugy:

The New York Times
PT Cruisers
Goldendoodles

Australians

Addison Rae
White people
Billionaires

The person writing this definition
by Callmemaybe69 May 04, 2021
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2
secret girlfriend, a girl from a couple who don't want to reveal their relationship
boy: I like you!
girl : if my parents find out it could be very embarrassing!
boy : I guess your my sgf then..
by Nebkiwi May 10, 2008
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