on the trot
flat out
rushed
busy as a beaver
abustle
flat chat
superbusy
rushed off one's feet
flat strap
busily
tied up
semibusy
busyish
busyness
thrang
on the go
overcluttered
occupy oneself
ever-busy
in the throes of
chokka
busy
occupy
up to one's neck in alligators
overbusy
up the walls
I'm busy
jostlingly
slammed
bustling
overoccupied
throng
incessably
swamped
busy as a bee
around the clock
employ
unsleeping
pragmatic
kaypoh
up to
overleisured
everlastingly
every time one turns around
insistent
repetitive
sloggingly
overfurnished
incessable
consistently