duck tape

From Wiktionary

Noun[change]

Singular
duck tape

Plural
none

  1. (uncountable) Duck® brand duct tape.
  2. (uncountable); (informal) Another word for duct tape.

Usage notes[change]

Duct tape and duck tape are pronounced the same way so either word may be used. Note, however, that Duck® tape is a registered trademark.