play someone false
sell down
traitorize
traitor
stab in the back
eat one's young
dob in
burn
assfuck
rat
go back on
do the dirty on
sell
sell down the river
bilk
sell the pass
ratfink
tie someone's hands
pull the wool over someone's eyes
take for a ride
grass up
grass on
let down
cross up
bluff out
mump
fink
throw dust in someone's eyes
betray
sell out
play
mortify
debauch
beggar
abduct
sham
shit
bamboozle
cheek up to
roll
throw under the bus
lirt
run game on
sell someone a bill of goods
put a pin in
cheek up
turncoat
subvert
dragoon
disauthorize
misconfide
knife
dastardize
come the raw prawn
appeal
flapdoodle
take the shadow for the substance
pauperize
guile
begunk