What are they saying?

When I play the game with Team Sonic and you switch to Knuckles and start attacking the enemy by pressing x again and again, I'm not sure what he is saying. My friend and I think he is saying sh!t rock. Also the closed captioning doesnt help, because it doesnt read anything when he says it.
Also, what is Tails saying when you go into fly formation and press x to attack someone? It sounds like hes saying tape. Can you guys help me?Thanks.