lemon /ˈlɛmən/noun 9adjective 3verb 1forms 5phrases 3 noun9 •a yellow fruit that grows on trees in warm places and tastes very sharpThe juice of Lemmons killeth Warts, but better the water of the same juice, distilled through a glass. — 1680 •(slang) A defective or inadequate item or individual.He didn’t realise until he’d paid for it that the car was a lemon. •Lemon juice.[J]ust at the last scald four or five spoonfuls of thick new cream, with a few drops of lemon or vinegar, mushrooms pickled do well, […] — 1737 •A more or less bright shade of yellow associated with lemon fruits. •A semitropical evergreen tree, Citrus limon, that bears such fruits. •(slang) A piece of fanfiction involving explicit sex.I'd really like to know what people think of this and whether I should carry on writing lemons or go and hide under a rock somewhere. — 1997 •A lemon shark (Negaprion brevirostris). •(slang) Favor.A thousand quid for that motor? Do me a lemon! I could get it for half that. •The surface of revolution of a circular arc of angle less than 180° rotated about the straight line passing through the arc’s two endpoints. adjective3 •Containing or having the flavour/flavor and/or scent of lemons. •Of the pale yellow colour/color of lemons. •(slang) Smart; cheeky, vocal.Obviously Emin is not the first public figure to get lemon over tax increases. — 2009 verb1 •To flavour with lemon.You can start the vegetables cooking while you are lemoning the fish. formslemoned · lemoning · lemons · more lemon · most lemon Phrases with lemon do me a lemonExpresses disbelief. lemon lawA law dealing with defective items, especially automobiles, and the rights of consumers. suck a lemonTo be in a sour or negative mood.