Any product,usually in a topical cream form, that is used to increase the length or girth of a man's penis, and thus enhance his sexual experiences. The term was made famous on SNL.
"I know I'm 78, Marge, but that Boner Juice works miracles!"
As old as time itself, BONER JUICE is a complex mixture of sperm and semen.
Honey, allow me, there are remnants of BONER JUICE on your face from last night.