you can't be half pregnant
either-or
trilemma
false dilemma
fork in the road
false dichotomy
whatever the case may be
as the case may be
tough call
polylemma
six and two threes
lesser evil
diptote
alternative
ex parte
Hobson's choice
either
binary
doomed if you do, doomed if you don't
choice
quadrilemma
option
up to
spoilt for choice
match made in hell
leave off
between a rock and a hard place
between
between the hammer and the anvil
paradox
biconditional
dilemma
bag
elect
error
slip
antioption
pleasure
will
xor
vagrate
rather
first dibs
double
on the horns of a dilemma
of one's choice
take
restatement
damned if one does and damned if one doesn't
reproposal