suru verb (irregular), transitive verb
paste; stick with glue; starch
Used for attaching paper or cloth with glue, or stiffening fabric with starch. The starching sense is less common in modern daily life.
ポスターを壁に糊する。
I paste a poster on the wall.
ワイシャツを糊する。
I starch a dress shirt.
suru verb (irregular), transitive verb
scrape a living
Idiomatic use in the fixed phrase 口を糊する, meaning to barely earn enough to eat. Not used freely outside this expression.
See also: 口を糊する
彼は日雇い仕事で口を糊している。
He scrapes a living with day labor.