On gloss:

gaxmolgle in sense "anal-oral sex"
gl1 rims/performs anilingus on gl2.

On affix form:

rimni
x1 rhymes/alliterates with x2 in language/phonetics x3, matching sound correspondence x4 (ka).

In definition:

ctebi
x1 is a/the lip [body-part]/rim of orifice x2 of body x3; (adjective:) x1 is labial.

In notes:

palne
x1 is a tray/platter/flat container [pan/sheet/griddle] of contents x2, and made of material x3.