be over one’s head

be Verb

— This verb tells us that a thing is present, or in a place. The book is on the table. There was someone in the room. Were you at the party? — Happen The party was on Saturday. The next meeting will be here. — Go somewhere; visit someone (only in the present perfect tense) I've never been to Disneyland. — A verb we use when describing. The book is blue. They were sad about losing the match. John is 35 years old this year. Im fine. He'd like to be a doctor. The film was terrible! The book is 5 euro. — Act like someone or something Look, Mummy! I'm being a dog! Woof, woof! — We use a form of be and a gerund-participle to make progressive verb forms. He is sitting on the chair. I've been waiting for half an hour. They will be leaving on Tuesday.

over Preposition

— Something is over when it has finished, usually referring to an event. When the movie was over we left the movie theater. — In a location above something. He stepped over the dog. — From one side to the other. They went over the bridge. — If you invite someone over, you invite them to your house. They had him over for tea. — A number divided by another. Eight over two is four.

over Noun

— An over in a cricket match is six balls bowled from one end. The captain told me I would have to bowl the next over.

head Noun

— The head is the highest and most important part of the body. He put his head on the desk and fell asleep. — The head Is the owner of something. After the problems, the head of the company left. — The bathroom on a ship is called the head.

head Verb

— To go in a direction is to head there. Bill heads for the mall after work.