- like a Trojan
- light a fire under
- lewdness
- leaving aside
- like blazes
- lumble
- lovey-dovery
- louse
- lineaments
- locus
- locoweed
- like a bag of bones anorexic
- loadsamoney
- lose one's rag
- lay low
- little girls' boys' room
- light fire under
- low-spirited
- leaving a lot to be desired
- little girls' room
- loadsa
- lighthearted
- lickety-split
- lauded
- lonesome
- lassie
- lots
- leave flat
- ludic
- lady of the night
- lick someone's boots
- locum tenens
- little boys' room
- lame-brained
- let the grass grow under one's feet
- long-headed
- larrup
- lippy
- laundered
- loo
- like a bear with a sore head
- lamebrained
- little-bitty
- loose woman
- laugh-a-minute
- lam-brain
- long-faced
- lowdown
- lead up the garden path
- lubberly
- light out
- loads
- lid up
- lav can
- locum
- lamebrain
- lav
- legless
- like a cat on a hot tin roof
- lame-brain
- lady of pleasure
- lolly
- lo
- loopy
- loony
- l.s.d
- loco
- lashings
- lubber
- like a cat on hot bricks
- loathly
- like a dog with two tails
- lose one's mind
- lummox
- lose one's marbles