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