flex -
the act of flexing; "he gave his biceps a flex to impress the ladies"
flexion,
flexure act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased
Verb
flex -
cause (a plastic object) to assume a crooked or angular form; "bend the rod"; "twist the dough into a braid"; "the strong man could turn an iron bar"
crook,
curve bend or cause to bend; "He crooked his index finger"; "the road curved sharply"
arc,
arch,
curve form an arch or curve; "her back arches"; "her hips curve nicely"
incurvate cause to curve inward; "gravity incurvates the rays"
retroflex,
replicate articulate (a consonant) with the tongue curled back against the palate; "Indian accents can be characterized by the fact that speakers retroflex their consonants"
slant,
tilt,
angle,
lean,
tip present with a bias; "He biased his presentation so as to please the share holders"
crouch,
bow,
stoop,
bend bend one's back forward from the waist on down; "he crouched down"; "She bowed before the Queen"; "The young man stooped to pick up the girl's purse"
double over,
double up,
double bend over or curl up, usually with laughter or pain; "He doubled and vomited violently"
