The fully-clothed dry humping
that occurs when both parties are too cozy, warm and comfortable
to stand getting undressed or throwing off blankets, often culminating
in interlocked mutual sleep.
"So did you and Jen get hot and heavy last night?"
"Nah, once we got in from
the snow and into bed we were both too cozy
to bother. We just had snugsual intercourse instead."