Correct

内急

/ nèijí /
Strokes

Definition

to need to answer the call of nature

Example

As a Verb

be bursting (for a wee/pee); be desperate for a wee/pee/poo; have to relieve oneself; need to use the toilet badly

1
suǒ
厕所
zài
nǎr  
哪儿
  
?
nèi
内急
  
!

Where's the loo; I'm bursting (for a pee)!