queer someone's pitch
hard yards
make hard work of
over the river and through the woods
challenge
boil the ocean
difficultate
pull teeth
mountain
make a meal of
up the ante
square one's shoulders
dink
mission impossible
an old dog for a hard road
bear
proposition
hash out
beaver away
waltz
laboring oar
difficulty level
pain point
have a mountain to climb
give someone a hard time
chore
throe
scut work
Matterhorn
lightning in a bottle
station
bad boy
rush job
bollocks
bring off
drop someone in it
pull someone's chestnuts out of the fire
army volunteer
chorelike
wherewithal
hardpressed
scratch one's own itch
get one's hands dirty
reach
summit fever
get over the line
break a sweat
hinder
look for trouble
labour