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1.
1. when the smell of your armpits brings back the memories of adolescence.

2. a place that reeks of body odor such as middle school, or locker room.
Dude it smells funky up in here; it's like an armpit time machine.

While doing a pit check Dirk was transported back in time by his armpit time machine.
by Drockinit April 24, 2010