When you haven't gotten laid in a long ass time because you're a prick.
Look over there that dudebro is a dehydrated cactus.
when one is dehydrated from not having dick in their mouth, or their pussy is dehydrated
dick-dehydration is when you have no dick in your life; or it can mean that a males dick is all dry and crusty from to many sexual intercourse.
An empty water station, that makes you feel dehydrated when you try to take water from it
the hydration station is currently a dehydration station
the dick of a guy who drinks nothing but soda.
most likely also has toxic waste cum.
"the guy I sucked off last night had dehydrated dick asf."
A subspecies of women that weighs at least 200 lbs, and can't seem to drink enough alcohol as if she were dehydrated. She is also loud, obnoxious, and a complete cock block. She will purposely sabotage you from hooking up with any of her friends and insist you buy her more drinks because nobody will fuck a dehydrated walrus.
"I will never get a shot with Mary. Her friend, the dehydrated walrus, is killing my bank."
Bar tender - "Sorry sir we have no Shmirnoff, Bud Lights, or Twisted Teas. That pack of dehydrated walruses have damn near drank this bar dry!"