1 definition by CSN.NIC
CSN stands for a certified side nigga, essentially meaning a man on standby ready to fuck a woman in a relationship.
Girl1: my boyfriend so nice but he ain’t be givin me da inches right
Girl2: girl what you need is CSN
Girl1:what’s a CSN
Girl2:Certified side nigga...a nigga that makes you cum, and tells nobody
Girl2: girl what you need is CSN
Girl1:what’s a CSN
Girl2:Certified side nigga...a nigga that makes you cum, and tells nobody
by CSN.NIC December 30, 2020