아무것도 안 사줬지.

A: My birthday is fast approaching. What will you get me?
B: The same thing you got me for my last birthday.
A: Last time, your “Big Day” slipped my mind and 아무것도 안 사줬지.
B: Well, there you go. That should answer your question, then.

A: 내 생일이 곧 다가오는데, 뭐 사줄 거야?
B: 지난 번 내 생일에 나한테 사준 거랑 똑같은 거.
A: 지난 번 네 생일 내가 깜빡 잊어서 I got you zilch.
B: 바로 그거야. 네 질문에 답이 됐겠지?

[Additional expressions]

* My birthday is fast approaching.
– My birthday is coming up soon. / It will soon be my birthday.
* What will you get me?
– What’s my present from you? / What kind of gift are you going to give me?
* The same thing you got me
– I’ll give you the same gift you gave to me / The same as you got for me
* for my last birthday
– when it was my birthday / the last time it was my birthday
* slipped my mind
– escaped me / went by before I noticed / happened without me remembering
* I got you zilch.
– I got nothing for you. / I didn’t get you anything at all. / I neglected to get you a gift.
* Well, there you go.
– See? There you have it. / Well, there it is, then. / Now you understand.
* That should answer your question
– Now you have the answer to your question. / That’s your answer.