A being with no purpose. A character from Dark Souls, which has lost its purpose in life and has lost its mind, meaning it will attack anything and anyone to collect their souls.

A mindless, purpose-less creature, without sanity nor reason for existance.
Did you hear about Dave? His wife died and now he has become hollow
by OneViolence March 24, 2015
A freaky monster from the Bleach manga. A Hollow is a fallen spirit that is born from a regular spirit (plus) that has lingered in the living world after death too long. After awhile, a plus (especially a lonely and desperate one) degenerates into a Hollow. Hollows are huge, freakish monsters with strange masks that hide their identity. They seek out other spirits and humans in order to satisfy their loneliness by eating their souls.
That Hollow just came out of nowhere!
by hanatarou March 18, 2005
Female who had the potential to become a canyon
"She's not a canyon, yet she's not a death star trench run"

"I just turned Chloe's hollow into a Canyon"
by AlexAggro October 26, 2009
A rolled cigarette that contains pipe tobacco, producing a fantastic aroma, flavor and overall smoking experience.
Oh, dear comrade, please join me in the smoking lounge for a hollow as we bask in its aroma and converse of the beauties of the cosmos.
by Smoke Better December 13, 2009
Hollow is someone who accidently sends pictures to girls and says "oops", whilst showing some nudity whilst doing so.
From Hollow: Oops, sorry firosee, i accidently sent you a photo of my 6 pack but you saw my hard ass pepe in the reflection in the mirror..
by Kaythy1000 December 22, 2020