Questions & Answers about Glasset smutter ud af min hånd, hvis det er vådt.
Because glasset is the definite form of et glas.
- et glas = a glass
- glasset = the glass
In Danish, the definite article is usually added to the end of the noun as a suffix:
- en bil → bilen
- et hus → huset
- et glas → glasset
So here the speaker is talking about a specific glass: the glass.
Smutter is the present tense of smutte.
In this sentence, it means something like:
- slips
- slips out
- accidentally gets away
So Glasset smutter ud af min hånd means the glass slips out of the speaker’s hand.
It sounds a bit more like an accidental, sudden movement than a simple neutral verb like falder (falls).