slammed
workless
occupational therapy
chokka
on the job
slam
nose to the grindstone
drudgery
abustle
ergomaniac
grafter
flat out
semibusy
rushed
busy as a beaver
busyish
overwork
paperwork
worksome
exploit
hardworkingly
go ham
superbusy
employ
flat chat
snowed under
rushed off one's feet
flat strap
on the trot
dig in
bust one's ass
hard yakka
busy bee
dink
busily
worksy
tool
sweat blood
work like a Trojan
slave away
beehive
hard at work
slopwork
work like a dog
bust one's balls
sweat one's guts out
thrang
up to one's neck in alligators
ultralaborious
industrious