Internet term. Verb. To invalidate your overly liberal position in an online debate by making veiled threats against the life or sexual dignity of your opponent's spouse or child, or faked threats against your own life.
Said after a very corny, very unfunny joke. Derived from the old Vaudeville comedy acts in which almost every one-liner was punctuated by a musical jingle. Usually played on the piano by a portly man with bright red cherub-like cheeks.