look up any word, like smh:
 
1.
1.
Multiple things in a small area or at a point in time.
Multiple people in a small vicinity (2+ people)
Term deriving from 'stoned', 'waked', blazed or 'high' individuals.

Can be used as an antonym of peaceful.

2.
Large amount of feces/poo
1.

person 1- 'there's a bit of mass shit going on at this party'
person 2- 'truth'

Overwhelmed stoned conversation - 'truth to be told about mass shit going on'

2.

'Dude that's a mass shit' (looking down at a toilet bowl)

'man that vtec is mass shit on wheels' (looking at a honda)
by back neck January 05, 2011