look up any word, like tribbing:
 
1.
thats what shit is called in nepali
vorey gadha, achi kha!
by tun tun May 03, 2008
 
2.
someone who is like a brother, a lover, a sister or a friend. Someone close to you that holds a place in your heart. Always trying to ACHIeve that place in your mind.
He is my Achi!

or

yeah, I know Sabrina. She was always like an achi to me.
by harhara May 05, 2011