To cope with something unpleasant without complaining--usually because you have no choice.
Supposed to be pilot slang. If you vomit into your mask, you'd better suck it up. Otherwise, you can inhale it and die.
Supposed to be pilot slang. If you vomit into your mask, you'd better suck it up. Otherwise, you can inhale it and die.
by Darwinfish March 07, 2004