Submitted by György Chityil ... on Fri, 01/19/2018 - 20:34 Hierarchy: VerbDescription: {{intransitive|bodybuilding}}: To cause one's muscles to swell by means of focussed weightlifting.Ngram: pump upNgram Text: pump upSource: WiktionaryIssue: 0Wiktionary tag: bodybuildingNgram Count: 2