Correct

拿大头

/ nádà tóu / 
Strokes

Example

As a Verb

take/receive/claim a bigger share

1
Wǒmen
我们
fēntān
分摊
le
了
gōngzuò
工作
  
/
huāfèi
花费
  
/
lìrùn
利润
  
,
dàn
但
wǒ
我
ná
拿
dàtóu
大头
  
。

We divided the work/expense/profit between us, and I took the bigger share.

As a Verb

cheat sb out of his money; fleece

2
Wǒmen
我们
zài
在
nā
那
jiā
家
lǚguǎn
旅馆
bèi
被
rén
人
ná
拿
dàtóu
大头
le
了
  
。

They fleeced us at the hotel. / That hotel fleeced us.