1. smoking a cigarette
2. when forgetting to flick your cigarette and the ash piles up, and finally, when it falls off, this is called "Jenga!"

1) To have something collapse on you.

2) Past tense: Jenga'd

A word used in reference to a drug

The way in which you carry yourself. Jenga is made up of your overall confidence, style, and demeanor. Jenga can also be expanded to be the reputation of your overall Jenga. You gain jenga, or "Jenga that shit", by performing jenga worthy actions that improve this perception. A person can also "jenga crash," by being an overall pussy and garnering negative jenga for their actions. Jenga is a subtle thing that many strive to gain but few actually attain. It is reserved for the most jengalicious of people. Jenga can also be quantified, with point systems existing in some circles of friends.

When one guy hits another guy in the nuts and yells "JENGA" to topple him over like a jenga tower.

To build up a girls hope that you like her so much, only to reveal the funny truth and watch her self image come crashing down.
Best to see how long you can build it up for, for more dramatic reactions.

And expression used to show excitment usualy