Top Definition
When a female queefs so hard that she suffers from afterrshock tremor queefs that follow the original large one unexpectedly.
After this weekends activities I have been suffering from Japanapants all morning now.

My boyfriend gave me a bad case of Japanapants last night.
I think I might have Japanapants cause this morning I let out a loud queef, and now these little ones just seem to be sliding out of me all day.
#queef #gueeve #japanipants #japanepants #pantipants
by kmcdt May 06, 2011
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