verb (literally or figuratively) to stop or hesitate as if suddenly seeing a bogle.
The dogs went on, but the horse boggled at the sudden appearance of the strange beast.
verb To be bewildered, dumbfounded, or confused.
He boggled at the surprising news.
verb To confuse or mystify; overwhelm.
The vastness of space really boggles the mind.
verb To embarrass with difficulties; to palter or equivocate; to bungle or botch
verb To dissemble; to play fast and loose (with someone or something).
verb To wiggle the eyes as a result of bruxing.
verb ↑ "Knowledge and practice: or, A plain discourse of the chief things necessary to be known, believ'd, and practised in order to salvation ... The 2d edition revised and inlarged 1665 publisher=William Grantham, Henry Mortlock, and William Miller
verb ↑ “boggle”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.