It's when a man takes his hands and smooshes both of the girls' boobs together. It always makes the girl squeal like a little piggy.
"Hey man, how'd your date with Cindy go last night?" Bob

"It was great! I made sure to boobiebash her for over 30 minutes!" Henry
by The Boobie Master June 13, 2009
Get the Boobiebash mug.
Steph: Look At Him, Whats He Doing?
Holli: I Think.. I Think Hes Boobiebashing
Steph: :O Boobie....Bashing....
Holli: Yeh Lets Join

(They All Boobiebash Together)
by Holli&Steph. April 15, 2008
Get the Boobiebashing mug.