I thought it was 'wagwan' not 'wagwarn'??
ALSSOOO don't forget 'leng' (gun). Funny enough, people often confuse skeng with leng, so skeng could be seen as a weapon in general to be honest.
And for E, don't forget 'ends' (equivalent to the American 'hood').
Murk (beat up someone really badly)
All the different clarts (bombaclart, rassclart, pussyclart etc). All high insults. Like you'd get murked in certain places that are aware of jamaican patois for calling anyone any of these.
'Dun Know' (a sort of celebration like 'Of course')
In grime music, girls are usually referred to as 'tings' or 'gyals', so you'd here something like 'peng ting' which means an attractive woman. Females could use tings when referring to guys as well. Oh yeah and a word you could use in place of 'peng' is 'piff' which just means something of high quality. So a 'piff ting' could be same as a 'peng ting' (in the same context of course).
Besides those, I think you got most of them down. Sorry my post is a bit messy, feeling slightly sick.
EDIT: When I wrote this reply, nobody had posted here. It posted late for some reason
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