v. To violently beat down a person with one's penis.
by Dystynt Methods March 21, 2003
Infinitive of penis; to penis someone|something.
I penisired him last night.
by Dystynt Methods March 19, 2003
To insert one's penis into an anus or vagina.
I penisired my room mate last night.
by Austin Nelson June 14, 2003