suck up to

US /sʌk ʌp tə/
UK /sʌk ʌp tə/
"suck up to" picture
1.

hacer la pelota, lamer el culo

to try to make someone in authority like you by flattering them or being overly helpful, often in a way that is not sincere

:
He's always sucking up to the boss to get a promotion.
Siempre está haciéndole la pelota al jefe para conseguir un ascenso.
I hate how she always sucks up to the teachers.
Odio cómo siempre le hace la pelota a los profesores.