ratslayer 

One who slays rats.

I’m a professional ratslayer. I’ve stabbed over 100,000 rats during my career.

ratslayer by God2 Electric Boogaloo July 27, 2019

Rat slayer 

One who slays rat.

I slay rat, therefore I am a rat slayer

Rat slayer by Rat king slayer July 27, 2019

Ratslimer 

When a woman takes the skin of a dead rat and rubs it on a man's penis before giving him a blow job.

I'm terribly sorry Mrs. Vinson, but that ratslimer paralyzed your husband to the point of death. I suggest you say your goodbyes now.

Ratslimer by realrealbananapeel January 21, 2023