+0
1. I have no idea what he means.

2. These are just playful ways to say good bye. "Later" and "Alligator" rhyme, as do "While" and "Crocodile."

I will see you later - I will see you in a while = Goodbye (for now).
+0
Cool BreezeThat would be cheating = That wouldn't be the right thing to do.

Cheers
CB
But, in the given context, how 'sitting back, relaxing, chilling out, and enjoying yourslef' would be cheating or wrong thing to do?
Comments  
That would be cheating = That wouldn't be the right thing to do.
Also, 'enjoy yourselves' since 'guys' is in the plural.

Cheers
CB
Site Hint: Check out our list of pronunciation videos.
 rishonly's reply was promoted to an answer.
Rishonly
Cool BreezeThat would be cheating = That wouldn't be the right thing to do.

Cheers
CB
But, in the given context, how 'sitting back, relaxing, chilling out, and enjoying yourslef' would be cheating or wrong thing to do?
Hi Rishonly

You expect scholarly logic from a band member trying to impress his audience. Such musicians may be drugged and are frequently incoherent on stage.

Cheers
CB
Cool Breeze
Rishonly
Cool BreezeThat would be cheating = That wouldn't be the right thing to do.

Cheers
CB
But, in the given context, how 'sitting back, relaxing, chilling out, and enjoying yourslef' would be cheating or wrong thing to do?
Hi Rishonly

You expect scholarly logic from a band member trying to impress his audience. Such musicians may be drugged and are frequently incoherent on stage.

Cheers
CB
They can also be somewhat crude in their references. Here, "cheating" and "enjoy yourselves" are possibly references to the act of self-gratification in a sexual connotation. [My apologies to the musical group if I am incorrect and have insulted them.]
Teachers: We supply a list of EFL job vacancies
Cool BreezeSuch musicians may be drugged and are frequently incoherent on stage.

"Drug" and "incoherence" resolve the puzzle. Emotion: smileThanks.