“I'm up for anything.”

You're with your friend. You're deciding what to do tonight. He suggests going to a dance club where his friend is DJ'ing & asks if you're OK with that. You don't care what you do, and want to show that you're having fun. You say:

I'm up for anything.

up for (something)

When you are "up for" an activity, it means that you are willing to do it. When you ask a friend "Are you up for ___?", you want to know if they want to do it, and whether they have enough energy for it. For example, if someone asks:

You want to play a game of basketball?

If you would like to play basketball, but you're too tired right now, you could say:

I'd like to, but I don't think I'm up for it right now.

up for anything

This means that you are OK with anything that someone suggests. This phrase sounds fun, positive, and relaxed.

Update on Monday, May 31, 2010 at 12:30PM by aaron@phrasemix

I got this question on Twitter:

Is "I'm up for anything" similar in meaning to "It's up to you"??

They are similar in meaning, but there are small differences. One difference is that "It's up to you." sounds more passive, while "I'm up for anything." sounds more enthusiastic.

Another difference is that "I'm up for anything" doesn't work if you're just choosing between two things:

A: Would you rather go out to eat or have something delivered?

B: It's up to you.