Extra large. Story behind this was a chick who once desribed her boobs this way in front of me. She was was loading her PA into her trunk (emo-accustic musician, just ended gig), and her boob got in the way. She exclaimed to some younger girls who were next to me, Geez, don't you hate it when your boobs get in the way? By comparison, they were glass-flat-chested, so they responded, No, we don't have big boobs. She says, Oh. Well mine are, like, gigangic. I was entertained by this for quite an inappropriatly long time... not in front of her, of course... Just thought you'd like to know, even thought none of that could go on the site... Example: Man, that is one gigangic cat that just walked by.
GIGANGIC
Meaning of GIGANGIC in English
Slang English vocab. Английский сленговый словарь. 2012