A Downes
When you say 'Down for it' means you're in on the mess and you're not going to back out.
My buddy said, 'I'm down for it,' and then he texted me a picture of his dog eating my pizza.
At the party, my cousin said, 'I'm down for it,' then proceeded to start a fight with the DJ.
My friend texted me, 'I'm down for it,' and then he went to the store and bought 20 liters of soda.