top-tankin 

When you drain the top tank of the toilet, and proceed to lay a steaming triple-coil in it. Mainly done by rich white kids.

Dont use the washroom. i was just top tankin

top-tankin by Norge March 25, 2004

top-tankin 

Taking a shit in the top tank of a toilet so that chunks of fresh shit fills the bowl with each flush.

Same as defined above.

top-tankin by Random_DooD August 5, 2004

top tanking

The act of taking a serious shitsickle in the top tank of a toilet.

dude that chicks party was so lame top tanking her toilet was the only way to add a little atmosphere...she'll never forget that night once she discovers where that stench is coming from...don't go back for a few days !!!

top tanking by last star fighter August 31, 2007

Taking the top left 

The act of becoming the person on the top left of your facebook 'Who's Online' display, hence the person you speak to most on the social network site.

'Me and Miranda have been talking on fb for weeks, I think she's taking the top left!'

Taking the top left by Reggae Mother October 1, 2011