kimutatja a foga fehérjét

• kimutatja a foga fehérét (with a somewhat archaic possessive-suffixed form of fehér)

kimutat (“to show, reveal”) +‎ -ja (“he/she”, third-person singular [definite conjugation] verb suffix) +‎ a (“the”) +‎ fog (“tooth”) +‎ -a (“his/her/its”, third-person singular possessive suffix) +‎ fehér (“white”) +‎ -je (“its”, third-person singular possessive suffix) +‎ -t (accusative suffix), literally “to show the white [part] of one's tooth [or: teeth]”

• IPA^(key): [ˈkimutɒcːɒ ɒ ˈfoɡɒ ˈfɛɦeːrjeːt]

kimutatja a foga fehérjét

1. (idiomatic) to show one's true colors, show the cloven foot (to reveal previously hidden wicked intentions)

   Synonyms: kibújik a szög a zsákból, kilóg a lóláb

• For the verb, see the definite conjugation of kimutat.
• The noun fog (“tooth”) takes the appropriate possessive suffix according to the subject of the sentence: fogam, fogad, foga, fogunk, fogatok, foguk.
• The inflected noun fehérjét remains unchanged.