something that you use to try to hide an embarrassing fact or problem.

Are the peace talks simply providing a fig leaf for the continuing aggression between the two countries?

• a big ask
• a big cheese
• a big deal
• a big fish
• a big fish in a small pond
• a big girl's blouse
• a big gun
• a big-head
• a big-mouth
• a big mouth
• a big noise
• a big shot
• a big wheel
• a billet-doux
• a bird-brain
• a bird in the hand
• a bird in the hand is worth two in the bush.
• a bird's eye view
• a bite of the cherry
• a bite to eat
• a bit much
• a bit of all right
• a bit of fluff
• a bit of how's your father
• a bit of rough