to commit suicide

(slang) to laugh one's head off

to be in stitches, to be convulsed with laughter, to be doubled up with laughter, to be rolling on the floor laughing

(derogatory) to give oneself airs; to push oneself forward

(derogatory) to ease one's conscience, to make oneself feel better

(informal, figuratively) to cudgel one's brain, to puzzle over something; to go to a lot of trouble over something

(informal) to reflect intensively on, to deliberate

(informal) to imagine things, to have another think coming, to be deluded

(colloquial) maybe, perhaps

(informal) to lie low, to watch one's step, to behave oneself, to straighten up, to walk the line