Sentence:  <WSD>Boofed</WSD> means that I grabbed her from behind her around the waste and pressed her buttocks against my groinal region. My wiener got hard and as she moved the rubbing caused me to ejaculate. All of this while both of us wore clothes.<!--this is a mention, but there is a use earlier in the same thread.--> 
Meaning of the word marked with <WSD> tags:  To have anal sex with someone, usually as the penetrative partner (possibly with negative connotations).