"Insinuator" is a word in ENGLISH

To advance slowly and furtively; to insinuate one's self; to advance or gain influence by servile or obsequious conduct.

To move in a stealthy or secret manner; to move imperceptibly or clandestinely; to steal in; to insinuate itself or …

To push or work (one's self), as into favor; to introduce by slow, gentle, or artful means; to ingratiate; -- …

To ingratiate one's self; to obtain access or favor by flattery or cunning.

malí-máli - Dim. and Freq. of malí. Also: to insinuate, hint at, use indirect language, enlighten another’s mind by allusions, …

sóhot - To enter through a small opening, to slip in, creep through, get in, insinuate oneself into, thread one’s …