The chairperson quietening down a verbose committee member by emitting a series of shhh's to the point that they sound like Thomas the Tank Engine
Gee Darren, I know Jane was interjecting a lot but I am not sure that she deserved that tanking
The act of drinking tea whilst masturbating (wanking).
The new guy was caught tanking in the crib room last week
When you smash you penis in between the toliet lid and the toliet
I was having a good day so I decided to go tanking
The art of (Especially in a video game) doing nothing to counter (I.E. dodging, parrying, ETC. (Typically an effect like a buff that raises defence would not fall under this category)) a damaging blow, (Typically a heavy attack or flurry of attacks) typically without dying.
Player: "Geez he really tanked a sniper rifle shot? He should be dead. God damnitt I hate ping so much get gud internet bro"
Nerd: "Tanking is possible with the perk e-"
The player's IRL gun: "bang"
When its a race to get to the bathroom after your stomach has been hurting so bad and taking the biggest shit possible.
Dude: O MY GOD IM GOING TO TANK !!!!
*he runs to the bathroom*
Dude2: O my god hes tanking in my bathroon ....
To do a headstand with your head in a toilet bowl. A variant of Planking.
Oh god, I went in the bathroom and John was tanking in the Urinal !!!