i'm down for whatever
They’re telling you they’ll do anything, even if it means getting stuck in a weird position or getting slapped with a wet sock.
'I'm down for whatever' when she said she’d try his grandma’s secret soup recipe.
'I'm down for whatever' when he said he’d wear a wig to the concert.
'I'm down for whatever' when she said she’d do a dance-off in the hallway.'