a ‧ blu ‧ tions /əˈbluːʃ ə nz/ BrE AmE noun [plural] formal
[ Date: 1300-1400 ; Language: Old French ; Origin: ablution , from Latin , from abluere , from ab- 'away' + lavere 'to wash' ]
if you perform your ablutions, you wash yourself – sometimes used humorously