CNN's Cooper explains Dyngus Day laughter

BUFFALO, N.Y. (AP) — CNN's Anderson Cooper says he was calling his giggling fit "stupid" during a segment on Dyngus Day — not the holiday itself.

He tweeted Wednesday that he's sorry if he offended anyone.

Cooper laughed through his Dyngus Day report Tuesday, which was featured during the "RidicuList" segment on "Anderson Cooper 360."

Dyngus Day is a Polish-American, day-after-Easter tradition celebrating the end of Lent. It features people playfully sprinkling each other with water and swatting one another with pussy willows to show their amorous interest.

Through a protracted fit of on-air laughter, Cooper said, "It's so stupid, really so stupid."

The segment prompted organizers of Dyngus Day celebrations in Buffalo to invite Cooper to attend next year's events.