Locked horns
When two people are in an argument that seems to be going on forever.
Oh dang Sally and Lisa have locked horns...grab the popcorn...
Lock Horns
To partake in sexual intercourse.
1. Hey baby wanna come back to my place and we'll lock horns?
2. I was with this hot bitch last night and we locked horns.
2. I was with this hot bitch last night and we locked horns.