SFA

Acronym: Shaking Fist in Air. Most likely above ones head.
Used as a response in text form to anything you strongly agree or disagree with.

"Trump is a GREAT president!"

Response, "SFA"
by Lord Wylie December 08, 2017
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SFA

Probably an acronym for something else, but this can be used for
Someone's (anyone with an S really)
Fat
Ass
Example:
Person 1: Have you seen (name)?
Person 2: The one with SFA?
person 1: yeah, she's dating Steiner (first name I thought of)
by shardass March 31, 2021
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