请教一些向“'bout”之类的口语缩略词,

out是缩略词?
Gotta
e.g. : I gotta go --> I've got to go
'Em
e.g. : Send all at once or spread 'em out --> Send all at once or spread them out
Lemme
e.g. : Lemme tell you this --> Let me tell you this
Y'all
e.g. : Damn y'all --> Damn ya' all --> Damn you all
Dunno
e.g. : I dunno what you mean --> I don't know what you mean
Whatcha
e.g. : Whatcha gonna do --> What are you going to do

bout好像不是缩写词啊~~
缩写词有：gonna=go to
wanna=want to
gimme=give me