(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!