た そそり勃つ Show inflections LinksSentence search for そそり勃つSentence search for そそりたつKanji details for 勃Edit in JMdict Godan verb with 'tsu' ending, Intransitive verb1. to become erect (penis, nipple, etc.); to tower (like an erection)See also そそり立つ そそりたつ, pun on そそり立つ Discussions Log in to talk about this word.