noun /ˈpɪmp(ə)l/
a) An inflamed (raised and colored) spot on the surface of the skin that is usually painful and fills with pus.
I had to pop that embarrassing pimple, it was huge and red and on the tip of my nose.
b) An annoying person.
Hes such a pimple! I wish hed stop being so irritating!
Wikipedia foundation.