Matching Pairs IDIOMS. COLORSOnline version IDIOMS. COLORS by María Marteles 1 Caught red-handed 2 Out of the blue 3 To be tickled pink 4 Gray area 5 To have a green thumb 6 Once in a blue moon 7 To be a black sheep 8 Take the red eye 9 Green with envy 10 To tell a white lie to be very jealous, envious very rarely randomly, without warning, surprisingly a small lie that is told to be polite or avoid hurting someone’s feelings something that is unclear, undefined to be extremely pleased to be skilled at gardening to catch someone in the act of doing something to be the outcast, odd one out, unlike the others a late night flight that arrives early in the morning