bulker I. bulkernoun (-s) Etymology: perhaps from bulk (IV) + -er 1.obsolete: a pickpocket's helper 2.archaic: strumpet, prostitute II. bulk·er\ˈbəlkə(r), ˈbu̇l-\noun (-s) Etymology:bulk (II) + -er : one that bulks; especially: a worker who bulks tobacco