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thunder dumper 

When a gay person takes a huge enjoyable shit in a small bathroom while on the phone with someone.
Why is your voice echoing? oh, im taking a thunder dumper.
thunder dumper by mini izzie July 18, 2010

midwest thunderbumper 

When someone's balls are being tazered while giving a Hot Carl, the result is a passionate hailstorm of streaming poo in the face.
She wasn't sure about Jeff until the first time he delivered a midwest thunderbumper, after which she knew she was really in love.

thunderbumper

How some people say thunderstorm (actual electrical storms; not any of that sexual horse puckey).
The weather forecast for today is cloudy with occasional thunderbumpers.
thunderbumper by Telephony2 October 13, 2025