A sexual act whereby the male partner orally enjoys (and brings enjoyment to) the females partner's breasts, via licking, sucking, and nuzzling them with his mouth and face. Is oftentimes assisted by either/both partner's hands.
Especially applicable when the woman has larger breasts rather than smallish ones.
Typically characterized by female "on top" position, where her breasts are suspended over/pressed into, the man's face.
"Oh man, we got home, she took her top off, and I just started snorfling those huge things!..."