癞蛤蟆想吃天鹅肉

lài há ma xiǎng chī tiān é ròu

lit. the toad wants to eat swan meat (idiom)

fig. to try to punch above one's weight

lài

scabies

used in 蛤蟆[ha2 ma5]

ma

toad

xiǎng

to think (about)

chī

variant of 吃[chi1]

tiān

day

é

goose

ròu

meat