in thunderation?

in thunderation?

Used as an intensifier after a question word (who, what, where, when, why, and how) to express extreme confusion, surprise, or aggravation. Primarily heard in US. And just how in thunderation am I supposed to have three reports done by 9 AM tomorrow? Where in thunderation did you find that rusty old car? Who in thunderation is making all that noise?
Farlex Dictionary of Idioms.
See also:
  • in (the) blazes?
  • the blazes
  • in blue blazes?
  • what in tarnation
  • in tarnation?
  • tarnation
  • in creation
  • in creation?
  • What in the devil?
  • (in) the devil