When you fuck someone and scream "live long and prosper " when you climax. Then afterwards watch godzilla.
Bro I pulled a dirty long last night with your trekkie mom
by The Electric monkey April 3, 2020
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Really?....you had to look this up? Very well...pay attention.

A Dirty Long Jon is what you get after assfucking a bitch while smoking a blunt of that good bubba kush so you forget to clean her out and when ya nut and pull out ya got a mix of cum and shit all-over your long Jon.
"That nigga was high as fuck with Kesha last night and pulled a Dirty long Jon"
by SilverWings2018 May 6, 2020
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