This is the 7204th most frequent Swedish word.
sec
"Sec" in Swedish means "dry" (typically referring to wine).
Here, 'sec' is used colloquially to mean 'a second', indicating a short duration of time.
Jag kommer om en sec.
I'll be there in a sec.
In this context, 'sec' is a diminutive term sometimes used in a sports or casual context to mean 'quickly' or 'immediately'.
Kan du landa en ollie på skateboard och visa sec?
Can you land an ollie on a skateboard and show me, sec?
In this sentence, 'sec' is used to imply a brief amount of time that she requires to perform an action.