dead giveaway

1. (idiomatic)A giveaway that is especially obvious, especially ruinous, or both, disclosing, usually unintentionally, a fact or an intention.

   That disguise is a dead giveaway! Choose something less obvious.

1. It's a dead giveaway.

   CC BY 2.0 FR · Tatoeba · Hybrid · B2Open on TatoebaReport a problem

2. Four or five pens in one's shirt pocket is a dead giveaway for a nerd.

   deVier oder fünf Stifte in der Hemdtasche sind ein todsicheres Zeichen für einen Nerd. — samueldora

   CC BY 2.0 FR · Tatoeba · darinmex · B2Open on TatoebaReport a problem

3. He said that English was his maternal language, but his accent was a dead giveaway.

   ruОн сказал, что английский ему родной, но акцент выдавал его с головой. — Ooneykcall

   CC BY 2.0 FR · Tatoeba · karloelkebekio · C1Open on TatoebaReport a problem

4. You can't seriously expect that they won't recognize you in that disguise. That lopsided, dime store moustache is a dead giveaway!

   ruНельзя всерьёз ожидать, что они не узнают тебя при такой маскировке. Накладные усы из дешёвого магазина выдадут тебя с потрохами, если съедут набок! — astynk

   CC BY 2.0 FR · Tatoeba · darinmex · C1Open on TatoebaReport a problem

regular