this describes anyone who has used a cucumber as a sexual instrument(usually through the rectum) rather than a vegetable
random guy: ''hey! how long do you take in the bathroom man''

other random guy (in bathroom): ''umn.....not long'' (groans)

1st random guy: (opens bathroom door and witnesses a large cucumber hanging from the other random guys ass with a dumbstruck look on his face)
''oh my god, CAPTAIN CUCUMBER, i knew it!
by the enchanted lemon of hermitage September 19, 2007
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When one butt chugs Captain Morgan while simultaneously sticking a cucumber up their vagina.
"Yo did you catch Marianne doing a captain cucumber last night?"

"Yeah it was insane!"
by Fuckfuckcucumber August 30, 2015
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