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(noun) mongathon is a long-term group, endurance binge on depressents, or soporifics (including Cannabis). Followed by a long period of monging.

See bongathon
The Abergavenny Smoke Out competition was a real mongathon, with competitors ingesting vast quantities of green! Some whitied.
by Hurnia December 27, 2006
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When a person can speak perfect English when they talk to you in person, but abbreviates every word in a sentence so the sentence becomes unreadable when they are online.
Spoken - Hello. How are you today? Did you pick up your essay from Mr Jones?

Online - hi how r u 2day did u pic ^ ur sa frm mr J

This is an example of a Mongathon.
by Sundariel January 11, 2006
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