Deeply engaged in something, to the point of being overwhelmed.

(idiomatic) Having a hard, strong, and determined look about oneself. / (idiomatic) Having a hard, strong, and determined mentality or mindset.

Having eyes that squint; cross-eyed. / Looking obliquely, or asquint; malignant.

(idiomatic) happy, of a happy character.

(botany) Having the anthers raised above the stigma, and visible at the throat of the corolla, as in long-stamened primroses.

Having square eyes; having watched too much television, etc.

(UK) bleary-eyed

(botany) Having the stigma visible at the throat of a gamopetalous corolla, while the stamens are concealed in the tube.

Having large, prominent eyes.

Having eyes that lack emotion or seem vacant.