Soulja Boy -- I Won $200,000 on the Super Bowl !!!

Soulja Boy HIT IT BIG last night ... coming up victorious on a $200k Super Bowl bet thanks to the Baltimore Ravens ... and the rapper says he already has a plan to spend the money. 

Soulja Boy -- I Won $200,000 on the Super Bowl!!! - Watch More Celebrity Videos or Subscribe

Soulja was hanging out with Sean Kingston in L.A. last night after the game ... and explained why he felt so confident bettin' on the birds. It's pretty solid logic. 

So what's he gonna do with his winnings? The 22-year-old says he plans on dividing the money between his retirement account and a low-risk mutual fund