plibu -pib- gismu

x1 is a/the pubic area/external genitalia [body-part] of x2.

See also cinse, gletu, pinji, vibna, vlagi, ganti, mabla.

In notes:

cinse
x1 in activity/state x2 exhibits sexuality/gender/sexual orientation x3 (ka) by standard x4.
ganti
x1 is a/the testes/ovary/testicle/scrotum/balls/gonad/stamen/pistil [body-part] of x2, gender x3.
gletu
x1 copulates/fucks/mates/has coitus/sexual intercourse with x2.
mabla
x1 is a derogative connotation/sense of x2 used by x3; x3 derogates/'curses at' x2 in form x1.
pinji
x1 is a/the clitoris/penis [projecting reproductive organ; body-part] of x2.
vibna
x1 is a/the vagina [body-part] of x2.
vlagi
x1 is a/the vulva [body-part] of x2.
fetpinji
p1 is the clitoris of p2.
jbepibnafei
x1 (du'u) is the biological sex of x2.