When the top of the head, or dome, is blown off by either 1) a bowl of good marijuana, or 2) a high caliber rifle round.
"The Marine Recon sniper smoked a bowl of marijuana and popped his top, and then aimed down the scope of his rifle and at a haji a mile away and... POP TOP!"
by domepoppa January 23, 2010
The hymen of a virgin female human.

aka:"Cherry", "Virginity"
"She's so fresh, I bet she still has a pop-top."
by dustinzmann April 29, 2010
used instead of "laptop" to make the word sound cooler.
Mike, I'm coming over to you in a few minutes! – Okay, take your poptop with you that we can play COD.
by Joooeey May 16, 2010

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