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.
by kmcdt May 06, 2011
Get the mug
Get a Japanapants mug for your Facebook friend Manley.