jiàn​fèng​chā​zhēn

to make use of every opening

见缝插针 見縫插針 jiàn​fèng​chā​zhēn
to make use of every opening
literally meaning to see a gap and stick in a needle; used to describe making use of every possible bit of time, space, or opportunity

Frequency

Movie subtitles
0.030 per million appears in 0% of films
Written text
0.739 per million

Sources