(noun) Tagalog; Called SMEGMA in medical terms, it is a
yellowish paste-like substance found inside the skin of an
uncircumcised human penis.
(adj.) Tagalog term used to describe an annoying, stupid, dumb and/or foolish person.
(as a noun) Ang dami mong kupal,
kadiri! - You got a lot of smegma, gross!
(as an adj.) Tingnan mo ginawa mo! Kupal ka
talaga! - Look what you've done!
You are so kupal!