(informal) to create a situation that is difficult to get out of.

Third-person singular simple present indicative form of dig one's heels in

(idiomatic) to refuse to change one's plans or ideas, especially when counseled otherwise / Used other than figuratively or idiomatically: see dig, heel, in.

Third-person singular simple present indicative form of dig up dirt

Third-person singular simple present indicative form of dig in one's heels

(idiomatic) To behave in a way that is likely to have future negative effects on oneself, including (but not limited to) death.

(informal) To shorten one's lifespan through unhealthy eating.

When finding oneself in a troubling situation, one should first make sure one is not making the situation worse by his own actions before addressing all other causes.

Alternative form of dig one's grave with a fork

Synonym of if you find yourself in a hole, the first thing to do is stop digging