You give it everything you got out there on the field. You play like an absolute madman and you maintain that energy throughout the duration of the game. It goes with that emotional, let everything out, don't hold back. Party.
Let's go doggon'it! We can't play like that, ACT THE FOOL!
This quote is similar to Ludacris' song "Act a fool", from 2Fast2Furious, which means "acting like a fool, in a desperate way" aka "last resort, trump card". However, this one means "act like a fool, while you're smarter than everyone else". Or in other words, "Trolling 101". It may be similar in some situations.... =)
"Act the fool" also means, in some countries, "fazer-se de parvo".
Crowd: "haha, that guy is such a tool! Let's make fun of him!!"
Guy 1: (thinking w/ a grin) "hehe.... they think I'm a fool. I'll show them!"
Guy 2: "Yeah man.... Act the fool..." (thumbs up)
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.