rub in
US /rʌb ɪn/
UK /rʌb ɪn/

1.
frotar, aplicar
to apply a substance to a surface or skin with a circular or back-and-forth motion
:
•
Rub in the lotion until it's fully absorbed.
Frota la loción hasta que se absorba por completo.
•
She rubbed in the cream gently.
Ella frotó la crema suavemente.
2.
restregar, recalcar
to emphasize something unpleasant or embarrassing to someone, often repeatedly, to make them feel worse
:
•
Don't rub it in that I lost the game.
No me restriegues que perdí el partido.
•
He kept rubbing in her mistake, making her feel even worse.
Él seguía restregándole su error, haciéndola sentir aún peor.