"ugly monster" is a correct and usable phrase in written English.
You could use it in a sentence such as, "The children were terrified of the ugly monster lurking under the bed."
Over the Fourth of July weekend, I painted my own big sign, "Another Ugly Monster Coming Soon" and hung it in front of the billboard.
For example, Scott Stantis, a cartoonist for the Birmingham News of Alabama, drew a picture of a big ugly monster labelled "The blame" inching towards the desk in the Oval Office.
The pair, who had been friends since secondary school, fell out in April 2011 when Oni allegedly accused Konye of texting her boyfriend and called her an "ugly monster".
During the war, Ms. Nini posted a letter on her blog condemning the Islamists of Hamas and calling on her "Palestinian brothers" to join together to eliminate what she called the ugly monster of Hamas.
To the boys, this ugly monster was less noble than archaic: a dusty museum piece worshipped by old men for obscure reasons.
You never make an ugly monster.
"But they've gone and put up these ugly monsters.
Thus, "In a creepy old castle all covered with spines, lived 12 ugly monsters in two crooked lines".
Mr. Lukashenko made it clear that he believed the explosion had been caused by a bomb, referring to the attackers as "ugly monsters".
All the injuries and ugly monsters are all make-up.
To her, "hungry is the meanest, ugliest monster you've ever seen".
