Wow, who knew a simple word like "stoke" could have so many meanings?
Per Dictionary.com:
stoked   [stohkt]
–adjective Slang.
1. exhilarated; excited.
2. intoxicated or stupefied with a drug; high.
stoke   [stohk] verb, stoked, stok·ing.
–verb (used with object)
1. to poke, stir up, and feed (a fire).
2. to tend the fire of (a furnace, esp. one used with a boiler to generate steam for an engine); supply with fuel.
–verb (used without object)
3. to shake up the coals of a fire.
4. to tend a fire or furnace.
Origin
1675–85; < D stoken to feed or stock a fire; see stock
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2010.
Word Origin & History
stoke
1660 (implied in stoker), "to feed and stir up a fire in a fireplace," from Du. stoken "to stoke," from M.Du. stoken "to poke, thrust," related to stoc "stick, stump," from P.Gmc. *stok-, variant of *stik-, *stek- "pierce, prick" (see stick (v.)). Stoked "enthusiastic" first recorded 1902; revived in surfer slang 1963.
Online Etymology Dictionary, © 2010 Douglas Harper
stoke (stōk)
v. stoked, stok·ing, stokes
v. tr.
To stir up and feed (a fire or furnace).
To feed fuel to and tend the fire of (a furnace).
v. intr.
To feed or tend a furnace or fire.
Informal To eat steadily and in large quantities.
[Back-formation from stoker.]
stoked (stōkt)
adj. Slang
Exhilarated or excited.
Being or feeling high or intoxicated, especially from a drug.
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Medical Dictionary
stoke definition
Pronunciation: /ˈstōk/
Function: n
: the cgs unit of kinematic viscosity being that of a fluid which has a viscosity of one poise and a density of one gram per cubic centimeter
Stokes Pronunciation: /ˈstōks/
Sir George Gabriel (1819-1903) British mathematician and physicist. Stokes enjoyed a long and illustrious association with Cambridge University. He is noted for his studies of the behavior of viscous fluids and for a theorem which is fundamental to vector analysis. The stoke unit honors his name.
Merriam-Webster's Medical Dictionary, © 2007 Merriam-Webster, Inc.
stoke (stōk)
n.
A unit of kinematic viscosity equal to that of a fluid with a viscosity of one poise and a density of one gram per milliliter.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Slang Dictionary
stoked (on (so or sth)) definition
mod.
excited by someone or something. (See also stokin'.) : We were stoked on Mary. She is the greatest.
Dictionary of American Slang and Colloquial Expressions by Richard A. Spears.Fourth Edition. Copyright 2007. Published by McGraw Hill.
I'm thinking Hank's exhilarated and excited to the point of feeling intoxicated.
Either that or he's planning on poking a fire with a stick.