gum up - definition and synonyms

phrasal verb [transitive] informal
present tense
I/you/we/theygum up
he/she/itgums up
present participlegumming up
past tensegummed up
past participlegummed up
  1. 1
    to cause things to be stuck together or covered in a sticky substance so that they no longer work smoothly
See also main entry: gum