Answer: flexes

AnswerCrossword Clue
FLEXESBends.
flexesFLEX, to bend (to curve (to bend))
flexesto bend
flexesto tighten (a muscle) by contraction
FLEXESMuscle moves
FLEXESPoses at a bodybuilding competition
FLEXESContracts
FLEXESEmulates Mr. Universe
FLEXESPoses, as on "Jersey Shore"
FLEXESShows one's muscles
FLEXESBends without breaking
FLEXESBends
FLEXESContracts, as a muscle
FLEXESShows off one's biceps
FLEXESMakes one's biceps pop
FLEXESShows, as one's muscle
FLEXESShows off one's pecs
FLEXESEmulates Mr. America
FLEXESShows off muscles
FLEXESShows off at the gym