"Man can we PLEASE"
This is a exclamation of excitement. The all caps of the please is important, as it indicates exactly how excited he is. It's important to note the punctuation; an exclamation point would have been either angry, or perhaps anxious/nervous, while a question mark would have been very surprised or confused, and finally a period would have roughly the same translation as stated above.
"talk about how we can do the cr.hp -> combo or cr.hp -> luger so good now"
This is a fairly easy translation. He's merely giving examples of uses for c.hp. He makes use of the "so good" exclamation, we'll go over that in a moment but for now just remember "so good", it's important.
"be like"
He's setting us up for an example. Consider this like you would "Ex:".
"man you hit me with the cr.hp so good. ow! wish you didn't cr.hp me so good"
This one is a more complex translation. The overall tone is very joyous, with a hint of fear. He's going in depth about his opponents reaction to getting hit, and he repeats "so good" a few times, both here and earlier. The literal translation for that is "Really well", so you could take this to mean he's going over just how in awe the opponent would be at his c.hp.