- cocktail flu = a hangover
- похмелье (букв.: коктейльный грипп)
[The Holdovers, 2023]

- chubby = fat in a pleasant and attractive way
- пухленький/полненький
[Love Actually, 2003]

- schmuck = a stupid, foolish, or unlikeable person (a borrowing from Yiddish)
- подонок/козёл/чмо
[The Holiday, 2006]

- to steep = to cause to stay in a liquid, especially in order to become soft or clean, or to improve flavour
- настаиваться
[Fur: An Imaginary Portrait of Diane Arbus, 2006]

- no spring chicken = no longer young
- уже не первой молодости
[Attack of the Killer Tomatoes!, 1978]

- make-up exam = an exam that a student takes to make up for a missed or failed exam
- пересдача
[The Holdovers, 2023]

- bugger off = leave or go away, used especially as a rude way of telling someone to go away
- пошёл вон/вали отсюда/выметайся
[Love Actually, 2003]

- to put someone on = to try to persuade someone that something is true when it is not, usually as a joke
- разыгрывать/подшучивать
[Eyes Wide Shut, 1999]

- to give something a whirl = to attempt to do something, often for the first time
- попробовать/дать шанс
[Home Alone, 1990]

- from the horse's mouth = from the person who has direct personal knowledge of something
- из первых уст
[Bridget Jones: The Edge of Reason, 2004]

https://news.1rj.ru/str/for_instance_eng/304

- five-o = police/law enforcement (from the TV show "Hawaii 5-0" about the 50th State's Police Department)
- полиция
[Eyes Wide Shut, 1999]

- to have a bee in your bonnet = to be so enthusiastic or worried about something that you keep mentioning it or thinking about it
- зациклиться/иметь навязчивую идею/быть чем-то озабоченным
[Harry Potter and the Chamber of Secrets, 2002]

- to lay it on thick = to exaggerate a statement, experience, or emotion in order to try to impress people
- сгущать краски/хватить через край/преувеличивать
[Harry Potter and the Prisoner of Azkaban, 2004]

- loquacious = somebody who talks a lot
- говорливый/словоохотливый/болтливый
[Harry Potter and the Goblet of Fire, 2005]

- bread-and-butter = basic and relating directly to most people's needs and interests
- основной/существенный/важный
[Harry Potter and the Order of the Phoenix, 2007]

- to gatecrash = to go to a party or other event when you have not been invited
- приходить без приглашения/«зайцем»
[Harry Potter and the Half-Blood Prince, 2009]

- wicked = excellent (slang)
- шикарный/крутой
[Harry Potter and the Deathly Hallows — Part 1, 2010]

- you and whose army? - used as a reply to someone who has said that they will do something, to express your opinion that they could not do it because they are not strong enough or it is too difficult
- ну попробуй/кишка тонка/рискни etc.
[Harry Potter and the Deathly Hallows — Part 2, 2011]

⚡️that’s all folks⚡️

- flight = a number of different types of wine, beer, etc. for tasting
- сет напитков
[The Killer, 2023]

- meal ticket = someone or something that you use as a way of getting regular amounts of money
- счастливый билет/кормушка/дойная корова
[The Gilded Age, 2022]

- to ground = to forbid a child or young person from going out as a punishment
- посадить под домашний арест
[Daria, 1997]