relieve
take care of business
relieve oneself
go
ease oneself
do one's business
relieve nature
make
use the toilet
nature
hit the head
wee-wee
incontinence
incontinency
drain the dragon
shake hands with the unemployed
piddle
make water
pass water
widdle
pittle
strain the potatoes
drain the lizard
pee-pee
take a whiz
drizzle
tee-tee
tinkle
pee
piss
sissy
do it
leak
bleed the lizard
micturate
syphon the python
wee
whiz
wazz
take a leak
drain the main vein
have an accident
do one's duty
answer the call of nature
micturition
emiction
miction
intermicturition
wring out one's sock
water