To cause harm to a benefactor (especially one that one is dependent on, thus with the idea that this behaviour is self-damaging).
To violate rules in order to gain, or attempt to gain, advantage from a situation.
To deceive; to fool; to trick.
To be unfaithful to one's spouse or partner; to commit adultery, or to engage in sexual or romantic conduct with a person other than one's partner in contravention of the rules of society or agreement in the relationship.
To manage to avoid something even though it seemed inevitable.
A card game where the goal is to have no cards remaining in a hand, often by telling lies.
A hidden means of gaining an unfair advantage in a video game, often by entering a cheat code.
Someone who cheats.
An act of deception or fraud; that which is the means of fraud or deception.
The weed cheatgrass.