Check a Look 

First stated at E3 2017 within a comedy sketch; this phrase serves as a catch all for "hey, look at this".

"Hey man, check a look at that girl's ass!"

Check a Look by Krythic June 12, 2017

how much wood would a woodchuck chuck if a woodchuck looked like you? 

JJ’s insult to Ethan. Basically ridiculing his obesity. Wood chucking is done with the mouth of a woodchuck, hence has a connection to eating

How much wood would a woodchuck chuck if a woodchuck looked like you? Quite a lot, apparently

how much wood would a woodchuck chuck if a woodchuck looked like you? by LazyRaisin November 22, 2017

How much wood can a woodchuck chuck if the woodchuck looked like you 

Ok you must have listened to KSI ft. Ricegum's new song before looking this one up. Fair enough !

So this one was directed at 'Ethan', one of the Sidemen members known as "Behzinga" and it's basically KSI asking Ethan how much wood can a woodchuck, CHUCK, if the woodchuck looked like him, which means if the woodchuck was FAT like Ethan.

So basically he's calling Ethan fat... From the start KSI seems to sum up the whole song !

I have a feeling that the 'Yo Mama' channel would like these fat jokes.

JJ : How much wood can a woodchuck chuck if the woodchuck looked like you ?
Ethan : Idk, if you're calling me fat are we counting the fat in your tits ?
Supa Hot Fire and his crew : OOOOOOOOOOOOOOOOOOOOOOH

How much wood can a woodchuck chuck if the woodchuck looked like you by G-F0rc3 August 13, 2017

Checkalook 

Check it out + take a look

Ill have to checkalook at that later

Checkalook by Whogivsafux October 4, 2013

checkalook 

to look at something.

Yo man, checkalook at that booty!

checkalook by Jimmy Pierce November 9, 2005