rub nose in it

To remind one of one's failures or wrongdoings. Whenever I make a mistake, my obnoxious co-worker is always eager to rub my nose in it.

Fig. to remind one of something one has done wrong; to remind one of something bad or unfortunate that has happened. (Alludes to a method of housebreaking pets.) When Bob failed his exam, his brother rubbed his nose in it. Mary knows she shouldn't have broken off her engagement. Don't rub her nose in it.