Top definition
Performing oral sex while hanging your head off the end of the bed or table.
Jangly acrobatics "ja" is laying on the bed with your head hanging off, with a penis in your mouth.

"JA" for short.
by Karla Myer September 09, 2007
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Cleveland Steamer Plush

The vengeful act of crapping on a lover's chest while they sleep.

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