Someone who is a barrel full of grumpiness. Despite all actions to turn the tidal mood, this mammal refuses efforts on all fronts. Applying the phrase "crank tank" when referring to said offender will often remedy the situation, assisting the grump bucket in performing a 180 degree turnaround.
"He woke up from his nap in full crank tank mode. He was pouting like a grump-asaur!"

"That girl is walking the crank tank plank."
by ahwoodul May 30, 2009
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Another form of the ubiquitous 'wank bank'
The area of your brain used for storing images that will later be used for self pleasure.
On seeing a hot girl walk by...

'thats going straight in the crank tank'
by Ollie Raison April 16, 2008
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To penitrate a womans area and fill her up with fluids.
Guy 1 : Man did you sleep with that chick last night?

Guy 2: Yea man totally Crank Tanked Her
by P Man JOnes December 14, 2011
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Verb: A conspicuous way of asking to have a hit of your mates hoon/tronax at work or school (or parties).
Synonyms: hit the vape, have a toke, "fuck your wife", schlomax the tronax, wang the schmang, have a hoon.
Bro 1: Yo im feening so hard rn can I crank the tank?
Bro 2: ye bro but its like 20 nic so its lowkey shit
Bro 1: shot g time to go N block bathrooms
by Ciggybutt-brain March 13, 2022
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