Two men are sitting on a river bank, fishing.
The first man hasn't made a single catch, while the second man has a bucket full of fish.
As the second man reels in another live one, the first man decides he's had enough.
"How do you keep catching so many fish??" he asks...
Without turning, the second man says "mmm gmmm fmmmMmm wmmm wmmm"
"What'd you say?" the first man asked.
Again, the second man repeats "Mmm Gmmm FmmmMmm Wmm Wmmm!"
"I'm sorry bud, I just can't understand you..."
The second man turns away quickly and spits, then turns back and says,
"You gotta keep your worms warm!!"