leaver
departer
goer
exiter
offski
departee
off like a dirty shirt
retreater
fleer
apopemptic
withdrawer
outgoer
trot off
jet
go off
leave behind
vanisher
get going
dash
make like a banana and split
toddle off
make like a tree and leave
haul tail
hit the trail
escapee
gone
exiting
AWOL
going
departing
bugger off
returner
take a hike
on the wing
disappearer
make one's exit
peace out
bust a move
take wing
way-going
go about one's day
take off
go on one's merry way
take leave
take one's leave
cut one's stick
trail
go about one's business
forsake
desert