Top definition
A term referring or poking at the idea of sex or anything related sexual activity, it is basically a term meaning:
1. The man's erect penis rapidly thrusting back and forth in the woman's vagina (or an anus).
2. The woman's vagina (or an anus)rubbing up and down on the man's erect penis.
3. The action of the penis penetrating an object or a person.
4. An insertion of the vagina that is pleasing to the woman.

Re:fucking
"hey what did you do last night?"-random guy
"oh,i gave your mom a "thank you in the 90's"all night"-other dude
"fuck you"-random guy
by fat sonofabitch June 18, 2012
Get the mug
Get a Thank you in the 90's mug for your cousin Georges.