flandangling
verb. (to flandangle) Literally, the act of going commando in a flight suit, although more commonly used to describe any situation where a mans testicles bounce around freely, usually when freeballing.
Captain Rogers had a smirk on his face at the staff meeting yesterday, indicating that he was probably flandangling.
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Joe ran track in his boxers, which resulted in some wicked flandangling.
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Joe ran track in his boxers, which resulted in some wicked flandangling.