When a Stink bug (Pentatomidae) in a last ditch effort at survival eject a foul-smelling glandular substance just before their imminate death.
Hey man don't mess with that stink bug he might pop a stink! or past tense

Dude last week I went to kill a stink bug and he popped a stink right on my hand!
by Jae Lorette January 30, 2011
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