The phrase "spooky spirit" refers to a feeling or atmosphere that is eerie, mysterious, or unsettling. It is often used to describe something that is associated with ghosts, supernatural occurrences, or Halloween. Full definition
Luigi is back, helping out Professor E. Gadd by battling spooky spirits across five haunted mansions! (nintendo.co.uk)
Who minds a few spooky spirits if there's a third bedroom, amiright? (rismedia.com)
To get their stores even further into the spooky spirit, Starbucks is also playing its own Halloween mix on Spotify, featuring creepy classics like Katy Perry's «E.T.» and Lady Gaga's «Monster,» but, disappointingly, not The Cranberries's «Zombie,» a bop if there ever was one. (bonappetit.com)