Head Socks
Description: From Wikipedia:"Giant tube worms, Riftia pachyptila, are marine invertebrates in the phylum Annelida.. related to tube worms commonly found in the intertidal and pelagic zones. Riftia pachyptila live over a mile deep, and up to several miles deep, on the floor of the Pacific Ocean near black smokers, and can tolerate extremely high hydrogen sulfide levels. These worms can reach a length of 2.4 m (7 ft 10 in) and their tubular bodies have a diameter of 4 cm (1.6 in). Ambient temperature in their natural environment ranges from 2 to 30 degrees Celsius." (Creative Commons Attribution-ShareAlike License)
Description: Yes, so are we - laughing our silly little heads off. But why is it not "LMHO", then? Apparently, back in the olden days when the internet was first invented, there was a worry that "LMHO" would get confused with "IMHO" - which, as everyone knows, means "In My Humble Opinion". Lower-case "L" and upper-case "I" can look the same in some fonts, so the standards people got involved and decreed that "IMHO" got there first, and "LMHO" would have to change. Why they chose the "A", nobody knows - according to rumour, it stands for "Laughing My ANSI-standard head Off". Honestly, what are they like...