short for aight which is short for allright

Ight is originated from the word "alright" but people over the years have become to lazy to say alright. Ight is most common among skaters,punks and gangsters. It is a very fun word to use.

Meaning Okay, or a conformation of something.

the noise that is made when one thinks something is a little entertaining but not enough to make a full burst of laughter. also in another case you don't want to make your friend feel bad when he makes a stupid joke, so you make that noise to be a good friend