An act of wrapping a/your penis with fishing wire till it turns purple and swollen with the string making it look like stripes
R- Hey, Jack you ever tried a purple tiger?
J-No.. whats that?
R- ITS FUCKING AWESOME!!
An African-American policeman, whose skin is so dark that it seems purple, allowing him to betray even other black people. Purple tigers are known to appear when tripping balls and/or when watching Walker Texas Ranger. Also a term used to describe purple marijuana.
"Stop trying to bug me out, faggot"