Meaning of chest bump in English:

chest bump

noun

  • A gesture of greeting or celebration in which two people jump and push their chests together.

    • ‘a celebratory chest bump from the team's coach’

verb

(also chest-bump)
[with object]
  • Greet or celebrate with (someone) by jumping and pushing one's chest against theirs.

    ‘he went to chest-bump a teammate’
    • ‘they chest-bumped and high-fived’