A stubborn oil filter, someone who over-tightens an oil filter, or the act of over-tightening an oil filter.
1. Dude, this thing won’t budge. It’s being a fitler.
2. Looks like the previous owner was a fitler. This thing won’t budge.
3. Dude, the lube shop guy totally fitlered the crap out of this.
by Elithis January 16, 2022
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Contraction of fitness and Hitler.
A friend, gym teacher, or personal trainer who is obsessed with working out and tries to get you to go along with their fitness regime.
Today in gym the fitler tried to get me to run a mile.

Our gym teacher is such a fitler!
by NotaFitler January 4, 2010
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Hitler when he's at the gym gettin PUMPED!!!
Oh him, yeah, That's fitler! He likes working out here.
by ezramiller_shouldntbegay September 10, 2022
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“fitler” to mean a stubborn oil filter, someone who over-tightens an oil filter, or the act of over-tightening an oil filter.
1. Dude, this thing won’t budge. It’s being a fitler.
2. Looks like the previous owner was a fitler. This thing won’t budge.
3. Dude, the lube shop guy totally fitlered the crap out of this.
by hvontres January 16, 2022
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A counter-strike game filter.
Derived from a misspelled "Filter" Menu option in the earlier versions of CS.
I want to play cs_assault, turn a fitler on for that one!
by moronicfuckup May 24, 2004
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I went up to the neo nazi and said fitler. Needless to say, he pissed his pants.
by yomoma June 21, 2004
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1. Person that throws a sissy fit.
2. An employer that rules with a Hitler-like attitude and puts bread on the table.
3. Person in charge of surveillance and patrol.
4. A clown.
Watch out, here comes Fitler!
by Woody November 7, 2003
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