to be overawed;  to be overpowered;  to lose the mental battle
 to apply pressure from above;  to press down;  to overwhelm;  to overpower;  to repress
 to squash;  to crush;  to flatten
 to crush to death;  to stifle to death;  to squeeze to death;  to stifle (a laugh, etc.);  to muffle (one's breathing);  to subdue (one's voice)
 push;  pushing;  weight;  pressure;  authority;  forcefulness
 being on the ropes;  losing ground
 pressing clothes, etc. by placing them under the bedding while one sleeps