what is a Slang for people competing each other head to head? (i am looking for a short one)
How about a duel?
its not a slang i am looking something like digg (when you like something)
Here are three that come to mind immediately.
at loggerheads
at odds
lock horns
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Butt heads...get-it-on...lets do it..come on big guy..no time like the present..sounds like fighting words to me..show you're stuff..sparring time..wana play in my court?...lets jam..
opponents, foes, competitors.
there's no slang that comes to mind
Dux Femina Facti-The Aeneid
smack down. that's what we call it when our cats fight at night.
3 am Kitty Smack Down.