Discreetly Slacking
Skipping small amounts of work in unsupervised scenario (such as a cubicle, the boss's coffee break or homework) to reduce the workload without the boss/teacher noticing.
Fred: How did you finish all that damn homework!?
Samuel: I was discreetly slacking.
Teacher: No one else finished their homework? You could all learn a thing from Samuel here.
Samuel: I was discreetly slacking.
Teacher: No one else finished their homework? You could all learn a thing from Samuel here.