Top Definition
To turn up for an event early, then leave before everyone else gets there.

Dan turned up at 4 o clock, even though we agreed to start playing at 5, then did a Hallows.
#late #let down #useless #bad timekeeping #lax attitude
by OiBrent October 06, 2008
Also used in JK Rowling's last Harry Potter book title.
Harry Potter and the Deathly Hallows
#harry potter #book #jk rowling #title #book title
by cadences December 21, 2006
another term for being loose
"Damn, Matt is very hallow.I wouldn't want to touch that!"
#loose #easy #whore #hoe #hallo #halo #halow
by MCbeshin April 04, 2009
Hallow=Hello
A greeting used in forums.
Hallow there, Bob! How are you?
by Pixie April 23, 2005
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