dǎ zhǒng liǎn chōng pàng zi
lit. to swell one's face up by slapping it to look imposing (idiom); to seek to impress by feigning more than one's abilities
yī kǒu chī bù chéng pàng zi
lit. you cannot get fat with only one mouthful (proverb)
fig. learn to walk before you run
yī kǒu chī ge pàng zi
lit. to want to get fat with only one mouthful (proverb)
fig. to try to achieve one's goal in the shortest time possible
to be impatient for success