麻吉

májí
  1. (slang) (Tw) close friend
  2. best pal
  3. to get along well
  4. to be tight
  5. congenial

CEDICT

slang taiwan

Entry Composition

=1 麻 má hemp (variant of 麻 má)
=1 麻 má
  1. generic name for hemp, flax etc
  2. hemp or flax fiber for textile materials
  3. sesame
  4. (of materials) rough or coarse
  5. pocked
  6. pitted
  7. to have pins and needles or tingling
  8. to feel numb

classifier: 縷
2 吉 jí
  1. lucky
  2. giga- (meaning billion or 10^9)