Slang term for one's own husband, used mainly by women in casual, often slightly rough or jocular speech. Not used to refer to someone else's husband.
My old man is late again today.
Standard kana spelling for this slang term.
Likely a contraction of 旦那 (だんな, 'husband') with the suffix つく, giving a rough, familiar tone. The kanji spelling 旦つく is ateji and rarely used.