Top definition
Derogatory phrase referring to a woman you would be embarrassed to be seen with. As in, you want to ride it but you don't want your friends to see you on it.
Guy:I'd like to have sex with that voluptuous lady over there but my friends only think skinny chicks are hot.
Friend: Yah, she's your sister's bicycle.
Friend: Yah, she's your sister's bicycle.
by GaeaKali November 30, 2014
Aug 10 Word of the Day
Running for exercise and picking up trash you find along the way. It's good for the body, mind, soul, and environment! Started in Sweden but is making its way to the U. S.
by Another damn hippie. May 09, 2018