台Taivo A Taiwan Mandarin dictionary

個頭

getóu

˙ㄍㄜㄊㄡˊ

Simplified 个头

1(coll.) my ass!; yeah, right! (used to mock a claim sb just made, as in 專家個頭|专家个头[zhuan1 jia1 ge5 tou2] "expert", my ass!)

Example

我個頭矮。

wǒ getóu ǎi

I am short.

Keep 個頭 and it comes back until you know it.