Double Tapping 

Is to send a text message after already sending a first text message and not receiving a reply, usually to a member of the opposite sex that one is interested in. The double tap is often a rookie mistake that everyone makes in their life and it usually comes off reeking of desperation (which in turn puts of the recipient of the text even more).

Person A -"Why hasn't she replied yet.... Stuff it im going to send her another text."
Person B - "Dude.. NEVER try double tapping.. thats instant desperate weirdo!!"

Double Tapping by Ruddaga August 31, 2009

double tapping nub 

some who uses the perk double tap in cod4

"you only beat me cause ur a double tapping nub"

double tapping nub by lolcat2519 August 25, 2008

double topping

The act of having two females perform oral sex one after another so as one female comes up, the second one goes down and vice versa. Heard on the Desus and Marco show from Viceland

Yo, somehow Joey was able to convince Denise and Laura to participate in some double topping, since they said no to a straight three way

double topping by 1242 410000 November 7, 2017

Double-Tipping 

Initial move to announce interest in persuing sexual intercourse. This move requires the use of “just the tip” of the penis to tease the oriface of interest.

My boyfriend “double-tipped” me last night... I had to tell him I was not up for it.

I don’t know if she’s into anal, don’t feel like having the conversation so I’ll try “double-tipping” tonight, while we are having sex.

Double-Tipping by QcSteveO March 25, 2019