(Old-school) The original slang term's pronunciation, often mistaken for the modern MLE (multicultural London English) phrase, "Come we go". It originated in Brixton, South London. Although the actual phrase "Come we go" is the true spelling of the meaning of the Patois phrase, "Com'e'go" was how the phrase was initially pronounced during the start of it's common usage (when adopted by non-Jamaicans in the area) in the early 90's.
The dramatic change of personality some people undergo after consuming ecxtasy or other narcotics. They have no recollection of taking on there embarrasing alter-E-go or anything they do when they've changed.
Friend 1: "no way is that Anton rolling around on the dancefloor naked?".
Friend 2: "no man that's Bernard his alter-E-go!".
The phrase "If e choke you go know" is a Nigerian Pidgin English expression that means "If you experience it, you will understand." It is a way of saying that someone will only understand something if they go through it themselves.