Top Definition
when a guy places a strap-on apparatus just above his cock for double penetration of the opposite sex bitches.
"Hey why is your girlfriend smiling so big for?" "Oh I just gave her The Optimus Prime last night."
by dpmjww August 12, 2006
1 more definition
12 Words related to The Optimus Prime
While performing "Whoopie" with your partner, just before you are about to erupt, pull your penis out, blow all over the front grill of a semi, and run the bitch over with the semi.
The cops were impressed with my creative imagination when I conceived THE Optimus Prime, but not impressed with the clean-up and paperwork after the deed was done.
by Jack Macaque July 19, 2010

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