even if one says

potential of 解す (gesu)

(chiefly in the negative) to understand, to comprehend

(in negative sentences) at all / completely / truly

expresses exasperation: honestly

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

to say, to tell somebody / to call, to name, to give a name / to cry, to call, to make a noise (such as an animal)

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