Top definition
1. Have intercourse.
2. Be more mature and act like an adult.
"Did you finally swing the bat last night?"
by m_one July 23, 2005
Happy St. Patties Day!
To move past simply flirting and actually make a physical move on your partner. Then, you move to the bases. Nothing can happen till you swing the bat.
"No shit you're still a virgin. Sure, you got game, but nothing can happen till you swing the bat."
by Cornelius Bethlaham October 08, 2014
Happy St. Patties Day!