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
癞
lài
scabies
蛤
há
used in 蛤蟆[ha2 ma5]
蟆
ma
toad
想
xiǎng
to think (about)
吃
chī
variant of 吃[chi1]
天
tiān
day
鹅
é
goose
肉
ròu
meat