1 definition by GrandmaBlaster

Top Definition
Engaging in sexual intercourse with a female senior citizen or mother of a child in which that child had another child.
Person A: "Where have you been?"
Person B: "I've been grandma blasting, bro!"
#grandma #blastin #blasting #grandmom #grandmother
by GrandmaBlaster September 03, 2012
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from daily@urbandictionary.com. We'll never spam you.