flexion, flexure - act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased

contract, shrink - become smaller or draw together; "The fabric shrank"; "The balloon shrank"

flaunt, ostentate, show off, swank, flash - display proudly; act ostentatiously or pretentiously; "he showed off his new sports car"

change form, change shape, deform - assume a different shape or form

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 - bend inwards; "The body incurvates a little at the back"

replicate, retroflex - bend or turn backward

lean, tilt, angle, slant, tip - to incline or bend from a vertical position; "She leaned over the banister"

crouch, stoop, bend, bow - 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"

fawn, grovel, cower, cringe, crawl, creep - show submission or fear

curl up, curl, draw in - shape one's body into a curl; "She curled farther down under the covers"; "She fell and drew in"

move - move so as to change position, perform a nontranslational motion; "He moved his hand slightly to the right"

change form, change shape, deform - assume a different shape or form

dent, indent - make a depression into; "The bicycle dented my car"

incurvate - cause to curve inward; "gravity incurvates the rays"

gnarl - twist into a state of deformity; "The wind has gnarled this old tree"

crank - bend into the shape of a crank

convolute, convolve - curl, wind, or twist together