Russian slang-word, means "suck" (my dick/my balls etc.) Mostly using for trolling or showing domination.
1) Trolling: - Bro, give me some money please- I forgot mine at home. Сасай i won't give you anything. Be hungry now.
2) *Guy won his friend in video game* -сасай i won you! That was an easy game for me!
2) *Guy won his friend in video game* -сасай i won you! That was an easy game for me!
by ult1matum January 9, 2016