Bo Horvat, immediately after the Islanders were thoroughly outclassed by the Sabres, 7-1, at UBS Arena on Monday night, used the words “embarrassed,” “unacceptable,” and “inexcusable” to describe both he and his team’s collective mindset and the way they played.

A 7-1 win over the New York Islanders, one month removed from their previous victory Nov. 23 at San Jose, ended the Sabres’ winless streak at 13 games and sends them to their three-day holiday break on a high note.

Beck Malenstyn scored just 2:07 into the game Monday night for the visiting Buffalo Sabres, who never trailed as they snapped a 13-game losing streak by routing the New York Islanders 7-1 in Elmont, N.