noun

a lie, typically an unimportant one.

why did you tell him such a dreadful fib?

lie,untruth,falsehood,made-up story,trumped-up story,invention,fake news,fabrication,deception,piece of fiction,fiction,falsification,fairy story/tale,cock and bull story,(little) white lie,half-truth,exaggeration,departure from the truth,alternative fact,tall story,tall tale,whopper,pork pie,porky pie,porky,terminological inexactitude

verb

tell a fib.

lie,tell a fib,tell a lie,invent a story,make up a story,dissemble,dissimulate,pretend,depart from the truth,exaggerate,stretch the truth,pull someone’s leg,lie through one’s teeth,con,kid,be economical with the truth,bullshit