ˈ ̷ ̷ˌ ̷ ̷ noun plural but singular in construction
Etymology: sly (I) + boots
: a sly, tricky person ; especially : one who is cunning or mischievous in an engaging, diverting way : scamp , wag
the slyboots , how she wheedled him — W.S.Gilbert
an adorable slyboots of a child who was often naughty but always forgiven and indulged — Gore Vidal