蛋疼

dànténg
  1. (slang) ball-breaking
  2. pain in the ass

CEDICT

slang

Entry Composition

1 蛋 dàn
  1. egg
  2. oval-shaped thing

classifiers: 個, 打
2 疼 téng
  1. (it) hurts; sore
  2. to love dearly