0 used to describe jokes that refer to toilets or excretion (= getting rid of waste from the body):
lavatorial humour
It is because of the aura that this whole subject has had: it has always been thought of and dealt with on a lavatorial level.
They used lavatorial antics to divert attention away from some of the real issues that should have been debated—in particular, the future of the railway pension fund.
The most inexpensive yet most effective way of reforming our prisoners and helping those who are incarcerated in prison as a punishment would be to put in proper lavatorial facilities.
It's a bit lavatorial and not very sophisticated.
