relieve oneself (
http://definr.com/relieve oneself)
v : eliminate urine; "Again, the cat had made on the expensive
rug" [syn:
make,
urinate,
piddle,
puddle,
micturate,
piss,
pee,
pee-pee,
make water,
take a leak, {spend
a penny},
wee,
wee-wee,
pass water]