So here I will list some of  the cheers I happen to know:

Red hot:

Red hot, our team is red hot!
Our team is r-e-d red, h-o-t hot, once we start we can't be stopped!

Score more:

1! We are the penguins,
2! A little bit louder!
3! I still can't hear you,
4! Score more more more more!
Score more more more!
SCORE MORE PENGUINS!

We're from:

Coaches: we're from Harlem!
Cheerleaders: we're from Harlem!
Coaches: couldnt be any prouder!
Cheerleaders: couldnt be any prouder!
Coaches: And if you can't hear us,
Cheerleaders: and if you can't hear us,
Coaches: WELL SHOUT A LITTLE LOUDER!
Cheerleaders: WELL SHOUT A LITTLE LOUDER!

Block that point:

Block that point penguins, block that point! X3

Dynamite:

Penguins are dynamite you don't mess with dynamite! -clap 3x-
And if you mess with dynamite, you go Tick tick tick tick.... BOOM!

To the g to the o:

TO THE G, TO THE O YELL GO GO! TO THE G TO THE YELL GO GO TO THE G TO THE O YELL GO GO!

Brr:

Brr, it's cold in here! There must be some penguins in the atmosphere! I said brr! Itscold in here! there must be some penguins in the atmosphere! I said OHEY OHEY OHEY OHEY ICE ICE ICE! OHEY OHEY OHEY OHEY ICE ICE ICE! BREAK IT DOWN! -SLOWLY- OHEY OHEY OHEY OHEY ICE ICE ICE OHEY OHEY OHEY OHEY ICE ICE ICE!
ICE!!!!