Questions & Answers about Tipl je u rupi na zidu.
Tipl is a wall plug / rawlplug / anchor — the small piece, usually plastic, that goes into a drilled hole in a wall so you can screw something into it.
It is a masculine noun in Serbian.
Because u here means in in the sense of location, not motion.
In Serbian:
- u + locative = in/inside (location)
- u + accusative = into (movement toward the inside)
So:
- rupa = nominative singular, hole
- u rupi = locative singular, in the hole
- u rupu = accusative singular, into the hole
So Tipl je u rupi means The wall plug is in the hole.
If you wanted The wall plug is going into the hole, you would use u rupu.
For the same reason: this is location, not movement.
With na:
- na + locative = on/at (location)