Butting heads happens when a pregnant female and a male with an extremely large cock are engaging in sexual intercourse. As the male begins to vigorously thrust his large cock into the pregnant females vagina, and gets deeper and deeper, eventually the head of his dick will begin butting against the head of the unborn fetus, which is commonly known as butting heads.
Jameson: Hey Gary, I heard you were banging that pregnant hooker last night.
Gary: Yeah, I did. And I’m pretty sure that baby and I were butting heads most of the time. I probably gave it a concussion.
When you want to give your bro a high five or handshake, but he has Coronavirus, so you knock dicks together instead.
Bro 1: I went to high five my bro on his successful penis enlargement surgery the other day, but he had Coronavirus.
Bro 2: What did you do?
Bro 1: We decided butting heads would be safer.