noun
Colloquial term for sperm or semen; used in casual conversation. The English loanword 'sperm' is the primary source, but it covers both meanings.
サーメンがついたシーツを洗濯した。
I washed the sheets that had semen on them.
彼はサーメンのことをよく冗談で話す。
He often jokes about sperm.