show up as

show someone up as something

to reveal that someone is really something (else). The investigation showed her up as a fraud. The test showed up the candidate as unqualified.

Name	Pronounced	Usage
RÓNÁN	RON-awn	Irish
Johan	YOO-ahn (Swedish)	Swedish, Norwegian, Danish, Dutch
Victorius	-	Late Roman
GÜLİStan	-	Turkish
Milagros	mee-LAH-gros	Spanish
Tupaarnaq	-	Native American, Greenlandic