“At night, my roommate darshen for hours about whatever comes to his mind.” (Weiser)

“My boss darshened about the need for saving money on phone calls.” (Weiser)

“My chavrusa darshened the posuk so intensely that he found chidushim that Moishe Rabbeinu could never have intended.” (Weiser)

"Being able to darshen does not make you a gadol batorah" (source)