отправиться в пешее эротическое путешествие(в пеший эротический тур и т.п.; аналогично, послать в такое путешествие – to tell someone to go where the sun don't shine (and how to get there / and never come back) 4uzhoj)
испортить воздух("Dave had a gas problem," says [Bob] Saget. "He'd let go right in front of the little Olsen twins. Mary-Kate would hold her nose and yell, 'Dave made a stinky!'"ART Vancouver)