one-handed tumble
Using one hand to scroll through pornography on Tumblr while using the other hand to manually stimulate the genitals.
The One-Handed Tumble is my favorite way to unwind before bedtime.
英语俚语辞典收录了3210630条英语俚语在线翻译词条，基本涵盖了全部常用英语俚语的翻译及用法，是英语学习的有利工具。