a fierce and violent fight amongst two people, or a number of participants that eventually turns into a full-fledged donnybrook!
At the local watering hole, the bachelor party erupted into a good old fashioned, Grade-A slobberknocker amongst the drunken friends, as fists flew and teeth became airborne.
Slobberknocker(s) - The mammary condition resulting from a session of open-mouthed motorboating. Saliva will invariably be knocked out of the motorboater's mouth onto the motorboatee's breasts; thus, "slobberknocker(s)".
1) Something that's going to be a complete shitshow.
2) something that doesn't make sense when logic is involved, but does when no one thinks about it.
1) "Hi, Bob here and I went to the interwebs asking for ideas on which ways to make a complete ass out of myself on my YouTube channel. This is gonna be a complete slobberknocker, oh boy."
2) The book series "The Hitchhiker's Guide to the Galaxy"