in other words; what I (you, etc.) mean is

to startle; to surprise; to astonish

past tense and perfective aspect of 言う (iu, yū) [godan]

nonetheless, although, be that as it may

urban myth; urban legend

having a comeback or excuse for everything one is told, being smart in the sense of having a smart mouth

hard to say, inexpressible, hesitant to say

Alternative form of 言うは易く行うは難し

to express well, to be articulate

(idiomatic) just as [someone] says