Dip
Dip verb - To sink or push (something) briefly into or as if into a liquid.
Flap
Flap verb - To move or cause to move with a striking motion.
Cite this Source
Flap and Dip. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/dip/flap
Dip & Flap. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/dip/flap>.
Flap or Dip. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/dip/flap.
Google Ngram Viewer shows how "dip" and "flap" have occurred on timeline