Top definition
To block a user (of an internet service, often Instagram) without a moment of thought because of the egregiousness of their words.
Clearly that guy is an obvious troll. I didn't pause a second to instablock him.
by streetsesquipedalian November 14, 2015
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Jul 27 Word of the Day
the whale tail is the shape formed when a g-string rides up high over a womans trousers
oh my god look at that butt, her whale tail is showing so high!
by garv November 10, 2003
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2
a person in roblox bloxburg that will instantly block you for being on their property
the idiot INSTABLOCK ed the person for being on their property
by Spyder_real August 09, 2020
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