look up any word, like dirty sanchez:
 
1.
Slang for an epic moment or life-changing memory.
Example one.
Person 1: Yo, that trip was gnarly!

Person 2: Yeah man, You're telling me!

Person 3: Adahoy!

Example two.

Person 1: I'll jump if you jump first...

Person 2: Adahoy!!!!
by stargazinglostboy November 15, 2013