A person who tends to talk about things without knowledge, and usually incorrectly (i.e. talks out of their ass), or generally speaking, an idiot.

Someone who provides oral stimulation to anothers anus.

Name for a foul-mouthed person

a dirty felcher

An insult which is used for its more impactful and unique tone.
Usually used when no one can think of a fitting insult for someone.

An ass kisser, brown noser, etc.

Butt hole or a mouth covered in shit