When the loose skin of one's testicles is bunched up, and made to look like a chewed piece of gum.
Male 1: "Hey bro, want some stubble bubble?"
Friend: "Ye-- Ew what the fuck?!"
by Stubbley September 30, 2015
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An aggravated ingrown hair that has resulted in a whitehead or a cyst on the face.
That's a mad stubble bubble you got on your forehead fam.
by hc_0 September 2, 2021
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