From the Mandarin "la-go", meaning "pull-grab", slang for 'pinky swear'.
The undying bond of friendship and trust. Made to signify that you dare not mislead or hide things from your closest
friends.
If you make lago its for reals. Only a big
douchebag would break it. The punishment for breaking lago includes humiliation and disgrace in front of all those around you, a feeling of worthlessness, and getting punched really hard.
Don't break lago.
Lago's enemies include:
Flappy
Not Lago
Ringo