throw down the gauntlet

US /θroʊ daʊn ðə ˈɡɔːnt.lət/
UK /θroʊ daʊn ðə ˈɡɔːnt.lət/
"throw down the gauntlet" picture
1.

to issue a challenge or an invitation to fight or compete

:
•
The rival company threw down the gauntlet by launching a new product with superior features.
•
He threw down the gauntlet, daring anyone to beat his record.
:
throw downthrowthrow-inthrow onthrow intake up the gauntletthrow out