To squat close to the ground; crouch. Usually used with down:
sit on one's heels
To press the entire body close to the ground with the limbs bent:
To move forward jerkily; push; shove
To hunch, huddle, or squeeze
To crouch so as to sit on the heels with the knees bent and the weight resting on the balls of the feet
Find another word for hunker-down. In this page you can discover 9 synonyms, antonyms, idiomatic expressions, and related words for hunker-down, like: hunker, scrunch up, crouch, get-down, hunch, hunch down, scrunch, squat and squat down.