UK [ˈbɒɡ(ə)l] / US [ˈbɑɡ(ə)l] verb
Word forms "boggle":
present tense I/you/we/they boggle he/she/it boggles present participle boggling past tense boggled past participle boggled
1) [intransitive/transitive] if the mind boggles, or if something boggles the mind, you cannot imagine it because it is too strange, unpleasant, or confusing

The mind boggles at the thought of John becoming a teacher.

2) [intransitive] to be so surprised or shocked that you are unable to believe something
boggle at:

I boggle at how much some of these lawyers earn.

English dictionary. 2014.