nodding acquaintance
noun
a slight, incomplete, or superficial knowledge (of something or someone): He had only a nodding acquaintance with Italian and didn't trust it to get him through the tour. Although we were neighbors for several years, we had only a nodding acquaintance.
a person with whom one is only slightly acquainted: I don't really know what he's like—he's only a nodding acquaintance.
Origin of nodding acquaintance
First recorded in 1860–65
Words nearby nodding acquaintance
nodal escape,
nodal extrasystole,
nodal point,
nodal rhythm,
noddack,
nodding acquaintance,
nodding dog,
nodding donkey,
nodding lilac,
nodding pogonia,
nodding spasm
Idioms and Phrases with nodding acquaintance
nodding acquaintance
Superficial knowledge of someone or something, as in I have a nodding acquaintance with the company president, or She has a nodding acquaintance with that software program. This expression alludes to knowing someone just well enough to nod or bow upon meeting him or her. “Early 1800s]