The retarded way to spell 'as well'. Despite what some people may think, 'aswell' is two separate words in any case, rather than just in a sentence containing 'as well as'.

A term used to reference cannabis/marijuana/weed.

Although wrong. Some people like to write aswell instead of as well.

Currently, a popular filler (first observed to be popularized by ABC news c.2000) in spoken media.

Often used at the end of sentences by paid "news readers" to fill airtime, while adding no value whatsoever.
ANY sentence with this ending can be said without it and the meaning remains unchanged.

The most annoying and irrelevant phrase that people feel the need to say all the time. It often doesn't make any sense but they say it to make themselves seem smarter than they really are, as well.

People can say aswell or as well but people who say as well are not good in the head

something wonderful, terrific