CanadianGran, i think it's the association of ideas, re moist.
never heard of jammer, but agree it is unpleasant, demeaning.
i also dislike brainstorm, as in a meeting at work to get ideas, as seeing an epilectic fit at very close range as a child, am aware of what a brain storm really is. is very serious.
even worse, also at work, people saying, can i pick your brains.
disgusting; why not say, can i ask you about x/ what do you think.
many of these dislikes relate to bodily matters. as does moist.