When your freak dancing with a girl from behind and your dick is sandwhiched between her buns (like a hot dog) and it feels like she's jackin' you off.
Guy one: Hey man wasn't that a crazy party last night?
Guy two: Ya dude that was insane! That girls was hot doggin' me the whole time!
When a male places his penis between the rolls of an obese woman and proceeds to have sex with the roll. Most would consider the love handle region preferrable for engaging in hot doggin'.
Last night I got wasted and asked some fat girl if she liked hot doggin', she said yes so we went to her placed and I hot dogged her all night long.