V.

writhe; convulse

Gruzovik

contort (impf of скорчить)

Игорь Миг

portray oneself as (разг.)

Gruzovik, Dial.

stub up; root out; grub up

Makarow.

double up

umg.

pose (with из себя + acc., as)

veralt.

writhle

корчиться V.

Allg.

writhe (от боли); squirm (to twist the body or wriggle • He lay squirming on the ground with pain); squiggle; twist about; wamble; wriggle; wry; wrestle; wring; thrash (MariaDroujkova); twitch; wince; winch; writh (устар., см. writhe; implies twisting, contorting, or wriggling the body, often in pain or discomfort • He writhed in pain on the floor • He writhed in pain, bending double • And, as he writhes on the ground, holding his smashed balls... Taras); convulse (to shake violently • convulsed with laughter)

Gruzovik

buckle (impf of скорчиться); bend (impf of скорчиться)

Dial.

twine (от боли)