when your girl is cowgirling you and you go to slap her ass and end up whacking yourself in the balls and promising you'll resume sex later.
It was going so well until I dirty callumed myself and then she blocked me on tinder.
by princepillip68 June 6, 2021
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A dirty callum is the act of doing too much cocaine and ending up freaking out and going to hospital...
“Hey is your friend okay he looked pretty spooked out last night”
“Yeah he’s fine he just did a dirty Callum
by Hospital king April 15, 2020
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Midget with a small dick who gets pegged by mr.hands and his horse cock
Cant come out im doing a dirty callum
by Callum Richard Peter Thomas January 31, 2022
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