usage: cause to become unblocked; "The medicine unstuffed my nose in minutes!"
2. relax, loosen up, act, behave, do
usage: become less tense, less formal, or less restrained, and assume a friendlier manner; "our new colleague relaxed when he saw that we were a friendly group"
3. limber up, warm up, loosen up, exercise, work out
usage: make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity