lonely as a clud (clouds are sometimes lonely) thick as a clud (clouds look thick and heavy) light as a clud (clouds are actually light and feathery)
clud otherwise known as cloud, so basically short for cloud
"lonely as a clud (clouds are sometimes lonely) thick as a clud (clouds look thick and heavy) light as a clud (clouds are actually light and feathery)" What is the definition of "clud"?