United StatesUnited KingdomWorldwideinformalcolloquialidiomatic
- To motivate, spur, or push someone to act more quickly or with greater effort; to create a sense of urgency or impetus.
United StatesUnited Kingdominformalvulgar
- A coarse or emphatic variant used to express the same idea of forcibly motivating someone, often with stronger or profane language.
Worldwideneutralliteral
- To ignite a fire beneath something, in the literal sense of setting a combustible material alight under an object or container.