suck a cactus
A derogatory term use when someone is mad, as an insult. Meaning to go suck a guys dick with herpes bumps on it
Bob: "You're a bitch!"
Bill: "Go suck a cactus!!!!"
Bill: "Go suck a cactus!!!!"
suck my cactus
A phrase used in many songs, usually rap, that means "suck my dick". A "cactus" can also be a penis that has been infected with herpes bumps. However, not always.
I was at the bar last night and that girl totally wanted to suck my cactus.