I'm looking for a phrase said to someone when they've understood or perceived something later than the majority or a group of people. For example, a group of students solve a math problem. Then, after a significant amount of time, a student yells the answer. Then students then say the phrase (welcome after).
In Norwegian, there is a phrase; "velkommen etter", said in a mildly derogatory way. It means exactly what I'm after, so I google translated it to see if what it's English equivalent was. When "welcome after" came up, I started to doubt if an English counterpart even exists. I feel like "welcome after" is simply the two words directly translated, and not the phrase's equivalent.
I saw no indication that "welcome after" is actually a phrase when googling it, which is also why I wasn't satisfied with that google translate answer.