Portuguese idioms rarely translate word for word, but their pictures stick once you've seen them:

Idiom	Literally	Meaning
pisar na bola	to step on the ball	to mess up; to let someone down
pagar o pato	to pay for the duck	to take the blame for something you didn't do
pagar mico	to pay the monkey	to make a fool of yourself
enfiar o pé na jaca	to stick your foot in the jackfruit	to overdo it — eat, drink or spend far too much
engolir sapo	to swallow a toad	to put up with something and say nothing
chutar o balde	to kick the bucket	to lose patience and give up — not to die!

That last one is a classic trap for English speakers: Ele chutou o balde means he'd had enough and walked away from it all.