- all-year-round
- a sprinkling of
- a shambles
- altercate
- above one's head
- abruptness
- as dead as a doornail
- ad rem
- at a rate of knots
- a bit thick
- auctioneer
- at the end of the day
- amazed thunderstruck
- a doodle
- a word
- acquit oneself of
- a speck of
- a shake-down
- ageist
- a pushover
- a fine kettle of fish
- asthenia
- a laugh killing
- a doddle
- all fingers and thumbs
- arty
- a chip on one's shoulder
- aristos
- as right as rain
- abundant in
- as pleased as Punch
- accessories
- airnheaded
- a breeze
- a pat on the back
- a smidgen of
- at a loss for words
- as sure as eggs is eggs
- a gogo
- and fishin'
- assort
- ad
- accede to
- a card
- a nonesuch
- as best one can
- asleep on the job
- as soon as possible. a.s.a.p
- a tad of
- as thin as a reed
- apartheid
- abnegate
- a caution
- ardency
- as fit as a fiddle
- argute
- all hell broken loose
- accessibility
- a load of pants
- a blue funk
- a dead loss
- arch. outrival
- as happy as Larry
- as soon as possible
- approved school
- a doss
- acerb
- asthenic
- a.s.a.p
- a bit off
- assumptive
- away with the fairies
- as fit as a flea
- afeared
- arh pursy
- ackers
- as plain as pickestaff
- a snap
- as poor as a church mouse
- asperse
- a snip
- a barrel of laughs
- as plain as day
- almsgiving
- as pure as the driven snow
- affrighted
- as cross as two sticks
- a dime a dozen
- as hard as stone
- advert
- as clear as day
- a bludge
- a pile
- Al
- all Greek to some
- a snack
- as plain as a pike-staff
- adamantine
- as sick as a parrot
- an abundance of