sardinisation
A passive process which one is subjected and forced to be squeezed within a finite confinement, i.e. the subway during rush hour; standing ticket zone in a super popular concert, etc.

Mostly involuntary in circumstances which one has no choice but to be part of this process, such is life.
Everyone who's been to Asia would probably agree that sardinisation is a daily routine for basic survival, anytime during the day one'd be subjected to be in 0.01m proximity with another being, such circumstances are not only limited to being physically pressed upon but also being able to smell each other's distinct odour, i.e. breath/burp/shampoo/deo/perfume, due to such proximity on every mode of public transportation except the cab.