What is this?
"Whoulda thunk there was more than 1 way to take a rest from training and allow your body sufficient time to recover?"

What is "whoulda thunk"? Is it "Would have thought" but wrote it wrong on purpose? Think thunk thunk? Whoulda woulda would have?

Question

What is this?
"Whoulda thunk there was more than 1 way to take a rest from training and allow your body sufficient time to recover?"

What is "whoulda thunk"? Is it "Would have thought" but wrote it wrong on purpose? Think thunk thunk? Whoulda > woulda > would have?

Answer

Thunk is used as a pseudo-archaic past participle of think (by analogy with drink/drunk.)

http://www.macmillandictionaryblog.com/whod-a-thunk-it

The formal definition is here,

https://dictionary.cambridge.org/dictionary/english/who-would-ve-thunk-it

Answer

Hey Tiger. You almost got it right. You have a really tricky sentence there.

"Whoulda" is a contraction of "who would have." "Thunk," in this context, is really informal way to say "thought." So the sentence could also read "Who would have thought..."

It's a phrase I might use in a Facebook post or a text to a friend. I wouldn't use it, however, in a business memo or a professional document.

Answer

You are correct.
Trying to sound uneducated and with a "rural" accent, probably.
Could be sarcasm.

Answer

It's basically short / slang for "who would have thought"