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(adj. and adv.) Not right, not correct, impolite, rude, improper, treyf, crazy; not ready, not alert; in baseball and softball, not touching one of the bases and thus vulnerable to being tagged out.
"I don't like Hillary either, but his remarks about her were way off base."

"Joe was off base so he was easily tagged out."
off base by anarcissie May 16, 2008
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1. not appropriate

2. by surprise

3. incorrect, not accurate
His claims are totally off base.

Off One's Base 

adj. A person that is crazy or behaving in idiotic ways
"you are so off one's base"
Off One's Base by Get a mug April 6, 2022

based off of 

a way to say "based on" when you want to sound dumb and use an extra syllable
based off of by it'sokaytothink August 9, 2012

based off 

Verbal phrase selecting one of the infinitude of things that something is not based on.
Want to hear my new idea for a weapon? It's based off The Little Mermaid by Hans Christian Anderson. What? Oh sorry, it's based on laser technology.
based off by AnnoyingBoomer September 11, 2021

based off of 

Verbal phrase that identifies one of the infinitude of things that something is not based on.
Want to hear my new idea for a weapon? It's based off of The Little Mermaid by Hans Christian Anderson. What? Oh sorry, it's based on laser technology.
based off of by AnnoyingBoomer September 11, 2021

The Egyptian Horoscope Is Based Off Elephants 

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The Egyptian Horoscope Is Based Off Elephants