Donkey's Years
Example:
I haven't seen Melvin in Donkey's Years! Not even sure I'd recognize him if he walked up to me.
I haven't seen Melvin in Donkey's Years! Not even sure I'd recognize him if he walked up to me.
Donkey's years
Several decades.
Donkey's Years
Example:
"I haven't seen Johnny in Donkey's Years"
"Wow it's been Donkey Years since the last time I ate pop tarts!"
"I haven't seen Johnny in Donkey's Years"
"Wow it's been Donkey Years since the last time I ate pop tarts!"