Definition from Wiktionary, the free dictionary
Literally, "She/he/it is having (something) inside". In the second case the implied word is a penis.
- (rare) Used other than as an idiom: see შიგ (šig), აქვს (akvs).
- (vulgar, idiomatic, offensive, pejorative) Does not have a particular meaning.
The second sense is largely used in interrogative sentences, even when one wants to offend someone.