Someone who thinks of a witty response too late for it to be funny. A combination of the word retort and tortoise.
That would have been funny five minutes ago, too bad you're a retortoise.
by JuanNephrota March 27, 2012
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someone who is slower and more retarded than a tortoise
rob: what'd you get on the math test
Jimmy: a 12%
rob: you're such a retortoise
by BigBlackManFucker12789 February 15, 2023
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