This sound is from TheGrefg Soundboard

TheGrefg is the online alias of Spanish YouTuber, Twitch streamer, author, and professional esports player David Cánovas Martnez. He is Team Heretics' owner. TheGrefg is the 108th most popular Twitch streamer and the 9th most followed. He is reputed to play other games sometimes but usually record Fortnite. One of the YouTubers with his own Fortnite skin is TheGrefg.