informalto threaten to use your power to get what you want
big up (to/for) somebody
spokeninformalused when you want to praise someone:
Big up to Kelly Holmes! She ran a superb race.
➔ think big
at think1 (39)WORD CHOICE: WORD CHOICE: big, large, greatbig and large have the same meaning, but largeis slightly more formal and more likely to be used in written than spoken English• a big lunch • a large houselargeis used with quantity words such as 'number' and 'amount'• large amounts of money • a large proportion of the studentsgreatis not usually used to talk about size but it can be used in literary writing to describe very large and impressive things• Before them stood a great palace.great is used with length, height, and age, and in the expression a great deal(=a lot)• The grass had reached a great height. • a great deal of moneyWORD CHOICE: big, tall, highbig is not used just to describe a person's height. It is used to describe a child who is growing, or a person who is heavy, with a lot of fat or muscle on their body.tallis used to describe a person's height. It can also be used to describe trees, buildings, or other things that are narrow and measure a long distance from bottom to top• She is tall and thin. • the tallest building in Londonhighis used to describe things or places that are a long way from the ground• a high shelf • the highest mountain in the worldWORD CHOICE: WORD CHOICE: fat, overweight, obese, chubby, plump, big, well-builtIn general, people do not like to be called fat. But some ways to say 'fat' are less rude than others.fatis a very direct word. You might use it about yourself but it will usually cause offence if you use it about someone else• I'm so fat at the moment!overweight is a more polite way to say that someone is fatter than they usually are or than they should be• She is a little overweight.obese is a word used especially by doctors to describe people who are very fat, in a way that is bad for their health.chubby is a more informal word and is used especially of children or of rounded body parts such as cheeks or knees.plump means fat and rounded in a pleasant way• a plump, motherly womanbigandwell-builtare fairly polite ways to describe someone with a large, strong, or fat body• For big men like him, air travel can be uncomfortable. ➔ See alsofat
Definition from the Longman Dictionary of Contemporary English Advanced Learner's Dictionary.