[NSFW] Dad and I were talking and Dad said someone Hotdogged it. Me: I don't think that means now what it did a while ago! *copious boisterous laughter. Dad: Grinning sheepishly Shut up I'm old!
Me: Continuing boisterous laughter. Dad: Does it involve a dick and lighter fluid? Me: 
No... no...
No... no...
Dad: I'm just no going to ask. Me: Probably for the best. 
Perks of being buds with one's Dad and or sharing a similar sense of humor.
;;
... what does it mean now? Because I remember that term as being innocent, too. XD
Oh, frotting!
Yeah one of several forms.
Now I feel old. XD
No worries I heard the term rather recently.
Never heard it.