Verb. To inhale balloons of laughing gas (Nitrous Oxide) continuously one after the other.
Similar to chain-smoking, chain-gassing can be a symptom of addiction. If you know someone who chain-gasses too often you might want to confiscate their Nitrous oxide dispenser.
It is possible for large groups of people to chain-gas together in one room. This can sometimes kill the vibe at a party.
When I'm in the depths of a laughing gas binge all I want to do is chain-gas.
That guy at the party would not stop chain-gassing, so I popped his balloon.
If you don't stop chain-gassing your tongue will turn blue.