Definition of multislacking in US English:

multislacking

noun

informal
  • The practice of using a computer at work for tasks or activities that are not related to one's job.

    ‘most employers tolerate a certain amount of multislacking’
    • ‘I'm the king of multislacking.’
    • ‘And a growing body of evidence suggests that multitasking can easily turn into multislacking.’

Origin

Multi- + slacking ‘working slowly or lazily’, on the pattern of multitasking.

Pronunciation

multislacking

/ˌməltī-/