day trip noun 1day-trip verb 1forms 4 noun1 •An excursion that lasts most of the day. day-trip verb1 •To go on a one-day excursion; To visit someplace and return within a day.Been day-tripping to the market and around the city for big sun hats, sundries and sights. — 1984 formsday-tripped · day-tripping · day-trips · day trips