pulling the rug out
- betrayalBreaking of trust
- blindsidedSurprised by unforeseen impact
- deceptionIntentional misleading of others
- sabotageDeliberate disruption of operations
- backstabBetray someone's trust
ambush · surprise · shock · underhanded · treachery · floor · falling · destabilize · trap · scheme · double-cross · switcheroo · bait-and-switch · gotcha · sucker-punch · scam · con · trick
pulling the rug outhaving someone's back
Providing reliable support
propping up · shoring up · bolstering · reinforcing · backing up