Dull 

Dull is an adjective. Dull has two meanings. (1) Boring
(2) Not sharp

(1) “Man life can be dull sometimes!”
(2) “This knife is dull. You may need to sharpen it.”

Dull by NerdyTes July 29, 2018

Dull 

Nobody misses something that got dull years ago.

Nobody was going to miss Lindsay, since she was a dull imitation long before she was a disaster. The people in her life, or in history (alive or deceased) that were everything she wanted to be, but wasn't, were people she went beyond admiration for, they were people she wanted to be, literally.

Dull by Solid Mantis December 20, 2019

Dull 

The view of the world that kindness is weakness is dull, because everybody has it. It's a cloned/copied view of the world rather than an original.

Something that everyone else does is dull, no matter how spicy, fiery, fiesty, quirky or anything else people call it instead of calling it what it really is.

Dull by The Original Agahnim July 12, 2021

Dull Triscuit 

Lame, boring like a plain Triscuit cracker.

Did you see what she's wearing? Girl is a dull Triscuit.

Dull Triscuit by Tk87 December 14, 2014

dull turd 

Slang for "adulterer". Sounds vaguely like "adulterer" and names them after something of comparable intelligence.

BOB: Wow, Barbara really likes me!

JOE: She's married dude. She's a dull turd.

dull turd by Rev. Johnny Cash March 10, 2009

dull yin 

Started off meaning a sore one. ie in a fight you could take a sore punch. (yin = one)

But now its turned completely around and it means something is very good.

Some people still use it to describe a sore knock on the head.

Scottish slang.

oohh he took a dull yin there. (old meaning)

you seen jimmy's new car? aye its a dull yin eh? (new meaning)

dull yin by wee sax December 1, 2007

dull as ditchwater 

very boring, or miserable.

old english phrase dating back to the 1700s, which plays on the double meaning of dull (boring/opaque).

modern english and american english also uses the phrase "dull as dishwater", probably evolved through mispronounciation and familiarity with the latter.

"andy has a new girlfriend but i can't understand why, she is as dull as ditchwater"

"wear the purple one, that black dress is dull as ditchwater"

dull as ditchwater by miss moo April 6, 2006