Sarcastic phrase the receiver of a threat says when someone threatens to do something whereby their threats are deemed to be better off for the receiver of the threat.
Muslims: We muslims will boycott Europe if you do not comply with Sharia law!

Receiver: Yeah, that'll show them!

Woman: We will strip naked to protest the patriarchy!

Men: Yeah that'll show them!
by Jeronleow April 23, 2018
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When people want to show off something cool to anger those around who showed off before
Bob:look at they're goals pic, I'll get a friend and do a better pic

Joe: yeah, that'll show them
by Fancy12 July 6, 2016
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