This is the 18327th most frequent Russian word.
штуковинах
A colloquial term meaning "stuff" or "thingamajigs."
The word "штуковины" refers to "things" or "objects" in a casual manner.
Эти штуковины разбросаны по всей комнате.
These things are scattered all around the room.
Here, "штуковины" refers to unspecified objects, emphasizing their oddity.
Он принес какие-то странные штуковины на встречу.
He brought some strange things to the meeting.
In this context, "штуковины" indicates unfamiliar or complicated tools or items.