dead giveaway

something that reveals a fact or an intention completely. The car in the driveway was a dead giveaway that someone was at home.

Name	Pronounced	Usage
Tangaroa	-	Polynesian Mythology
Anastacia	-	English
Aaminah	-	Arabic
Nicostrato	nee-ko-STRAH-to	Italian
Vayu	-	Hinduism
Dalal	-	Arabic