USE OF ENGLISH: PHRASAL VERBS

IMPINGE ON
To have a harmful effect on someone or something.
Example: Personal problems experienced by students may impinge on their work.

LARK ABOUT
To have fun by behaving in a silly way.
Example: A couple of boys were larking about in the pool.

LORD IT OVER SOMEBODY
To beave in a way that shows you think you are better or more powerful than someone else.
Example: He didn´t use his position on the council to lord it over people.

PLOUGH AHEAD WITH 
To continue to do something in spite of opposition or difficulties.
Example: The Government will plough ahead with tests this year, despite a boycott from teachers.

SADDLE SOMEBODY WITH SOMETHING
To make someone have a job or problem that is difficult or boring and that they do not want.
Example: We were saddled with the task of writing a report of the college´s games.

SUSS SOMEBODY/SOMETHING OUT
To realise or discover something, or to find out the things that you need to know about someone or something.
Example: He finally sussed out the truth.

WATER SOMETHING DOWN
To make a statement, report etc less forceful by changing ir or removing parts that may offend people -used to show disapproval.
Example: The report of the investigation had been watered down.



Source:
Definitions from LDOC Longman Dictionary of Contemporary English.