To acknowledge a quote, person or object that's aspiring or challenging without using a detailed description, to the extent of having an 'alleged' stiff member occur.
First Person:"What did you get for the exam last week?"
Second Person:"I got an A"

First Person: "So stiff"

Or,

First Person: "Did a lot of reps at the gym, just have a look at them"
Second Person: "Wow"
Third Person: "Challenge you to a push up contest ?"
First Person: "Yeah, i'll beat you, so stiff
by rob_boss_the_bard December 14, 2017
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