Hallow=Hello
A greeting used in forums.
Hallow there, Bob! How are you?
by Pixie April 23, 2005
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.
by OiBrent October 06, 2008
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