La-di-da
La dolce vita
Labour of love
Lager frenzy
Laid out in lavender
Lamb to the slaughter
Lame duck
Lardy-dardy
Lark about
Last but not least
Last straw - The
Latin Phrases
Laugh like a drain
Laughing-stock
Lay it on with a trowel
Lead balloon - Go over like a
Lead-pipe cinch
Learn the ropes
Left hand doesn't know what the right hand is doing
Left in the lurch
Legend in one's own lifetime
Leopard cannot change its spots - A
Less is more
Let not the sun go down on your wrath
Let or hindrance
Let a thousand flowers bloom
Let the cat out of the bag
Let them eat cake
Let there be light
Let your hair down
Level playing field
Lick and a promise
Lick into shape
Lickety-split
Lie low
Life in the 1500s - folk etymologies
Life of Riley
Life's not all beer and skittles
Life's too short
Like a chicken with its head cut off
Like a moth to a flame
Like being savaged by a dead sheep
Like billy-o
Like the clappers
Like the Dickens
Like two peas in a pod
Little bird told me - A
Little knowledge is a dangerous thing - A
Lions led by donkeys
Live long and prosper
Living daylights
Living off the fat of the land
Living on borrowed time
Lo and behold
Load of cobblers
Load of codswallop
Loaf of bread
Local derby
Lock stock and barrel
Long in the tooth
Loose cannon
Loose lips sink ships
Lose face
Lose your marbles
Love is blind
Love that dare not speak its name - The
Loved-up