1. tactical chunder

This is a chunder (or puke) which is invoked voluntarily through the use of a physical or physchological trigger such as shoving fingers down throat/drinking salty water or imagining eating slugs/watching your grandparents have kinky sex. The tactical chunder is widely regarded as an essential whitey management skill which can, in the right hands, prove to be the turning point for a particularly brutal session.

----> what's "whitey management"?

1. whitey management

To deliberately avoid a severe adverse reaction to excessive drug abuse. In many cases the whitey will have been brought on by a prolongued session involving a cocktail of drugs.

-----> What's a "whitey"?

1. whitey
The result of the subject's inability to handle their intake of alcohol or drugs.

Symptoms of being "on a whitey" include vomiting, nausea, tiredness, unconsciousness, and a pale facial complexion (which is how the term came out).