脑袋

head / skull / brains / mental capability / CL:顆|颗[ke1],個|个[ge4]

brain / mind / head / essence

pouch / bag / sack / pocket

(coll.) thickhead / (coll.) thick skull (i.e. the brain of a thickhead)

(coll.) thickhead / thick skull (i.e. the brain of a thickhead)

lit. the butt governs the head (idiom) / fig. where one stands depends on where one sits / one's views are shaped by one's circumstances

to blow one's brain out