intheordertheyshowedup

adverb phrase
UK /ɪn ði ˈɔːdə ðeɪ ʃəʊd ʌp/
US /ɪn ði ˈɔːrdər ðeɪ ʃoʊd ʌp/

In the same order that they arrived.

The teacher called the names in the order they showed up.


OTHER MEANINGS

2. Following the sequence in which people or things appeared.

The photos were arranged in the order they showed up in the album.

3. According to when each guest arrived at the party.

We greeted everyone in the order they showed up at the door.

4. By the time each item first became available.

The new songs were played in the order they showed up online.