"UL" is most commonly found on Reddit. UL subs are made in response to popular subs that have incredibly stupid auto-moderators that automatically remove 99% of posts with zero explanation (or a bullshit explanation).

r/showerthoughtsUL and r/AskRedditUL are the more famous ones. r/TrueUnpopularOpinion does not have UL in its name, but still falls into this.
by Someone who kinda exists June 20, 2023
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1. To close a school for a longer period of time.

2. To have riots and protest on campus.
1. The University of Liberia has been ul because the instructors have not been paid for over two months.

2. Because of constant protest and riots the government uled the state owned university.
by Aketella June 19, 2022
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Short for piontless.
"School is Uls
by Riley Quinning November 8, 2022
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"School is so Uls"
by Riley Quinning November 8, 2022
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..Really ? No one has defined this ? And DLing is barely recognized.

ULing means you're uploading.
I'm ULing you the rom now, that site is ass limited.

t0tally
by GEN.N0NSENSEI December 26, 2011
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Underwriters Laboratories, Inc. You see their logo all over the house (assuming you live in America and have electricity). They help you make sure you choose safe electric-powered stuff.
My laptop has a UL in a circle under it.
by GWR Definition Agency January 2, 2005
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