loosen up

definition: cause to feel relaxed
example:
speech part: verb
synonyms: relax
definition: become less tense, rest, or take one's ease
example:
speech part: verb
synonyms: relax
definition: make one's body limber or suppler by stretching, as if to prepare for strenuous physical activity
example:
speech part: verb
synonyms: limber up warm up
definition: cause to become unblocked
example:
speech part: verb
synonyms: unstuff
definition: become less tense, less formal, or less restrained, and assume a friendlier manner
example:
speech part: verb
synonyms: relax

How loosen up is being used?