The act of "funneling" drugs into the tip of one's penis to get high. Injection is also common. Similar to the Carlsbad Grimple.
Parent 1: You hear about rocket tipping yet?
Parent 2: Is that what I caught Johnny doing the other night?!
Parent 1: What'd you see?!
Parent 2: It looked like a elephant eating peanuts.
Parent 1: Yup, that's my boy.
Parent 2: Is that what I caught Johnny doing the other night?!
Parent 1: What'd you see?!
Parent 2: It looked like a elephant eating peanuts.
Parent 1: Yup, that's my boy.
by WhoDatJim November 08, 2019