popping

someone's eyes are out on stalks (informal, informal)

if someone's eyes are out on stalks, they are looking at someone or something in a way that shows that they think that person or thing is extremely surprising or attractive. You should have seen Pete when Bec turned up in her short skirt. His eyes were out on stalks.

See also: eye, stalk

pill-popping

pop pills - to take too many pills. As their relationship fell apart, his pill-popping started to get seriously out of control.