(idiomatic) add fuel to the fire

(figuratively) to make a little extra money, to top up one's income in order to live a bit more comfortably

(figuratively) to be much mistaken, to bark up the wrong tree, to delude oneself, to need one's head examined, to have another think coming

to moderate one's impetuosity

(figuratively) to muck in, to put one's shoulder to the wheel, to get one's hands dirty

(figuratively) to put one's foot in it, put one's foot in one's mouth

(figuratively) to close down (of a business), to close up shop

(figurative, transitive with à) to put a spoke in someone's wheel, to throw a spanner in the works of someone

(figuratively) to put the cart before the horse (to put things in the wrong order or with the wrong priorities; to put something inconsequential as more important than something more essential)

(informal) to get things straight, to make things perfectly clear, to put the record straight, to spell it out, to lay down the law