アミーゴ

noun

friend (especially male)

Casual Spanish-derived word for a male friend; often used in a lighthearted or friendly tone, similar to 'buddy' or 'pal'.

from Spanish amigo

• 彼かれは俺おれのアミーゴだ。

  He's my amigo.

• 久ひさしぶりだな、アミーゴ！

  Long time no see, amigo!