1. when sf first migrated to huddler, there was an option to add short (up to like 25 char or so iirc) comments to your thumbs. they were used to comment on fits or funny posts that weren't really long enough to warrant full posts. think 10char posts. also used deftly by certain users, such as @tcwalter07, who thumb commented exclusively in ebonics.2. is mafoofan, a 5'2" cult legend over at MC.