hinting at something bad in an indirect and unpleasant way

dirty, insinuating laughter

using subtle manipulation to manoeuvre oneself into a favourable position

a sneaky, insinuating move

suggest or hint (something bad) in an indirect and unpleasant way

he was insinuating that I had no self-control

slide (oneself or a thing) slowly and smoothly into a particular place

I insinuated my shoulder in the gap