Under siege noun phrase informal
To be surrounded by the army or police.
The terrorists were under siege after shooting hundreds of people at a shopping mall.
The suspect was suddenly under siege when he was fleeing the country.
To be criticized by lots of people.
She has been under siege because she has lost an important file of her group.
Jane was under siege when her scandal happened.
To punish someone or something harshly
Once something has been done, you can do nothing but face the consequences.
White lie
Act in a way that is likely to cause problems for you
In French, the word siege ultimately comes from the Latin word for "seat", which originally meant siege in 1200 in English. In the late 1300s, the siege was known as a "military attack" on a specific target, usually a fortress or city, in order to gain control over it. Then a target that is under siege is said to be under siege. It is unclear when exactly the phrase originated, but it appears to be under siege in the 19th century to discuss historical and contemporary military actions.
To argue with somebody
I do not want to bandy words with you about those trivial things.