Acronym for "Dual Income, Love for Dogs Only". Similar to DINK (Dual Income, No Kids), except while accepting reproducing is fucking stupid (take THAT, selfish gene!), a DILDO will take on the roll of pseudo-parents by adopting dogs instead.
"Look at those DILDOs, walking their washed and trimmed poodles."
"When we finish University and start our careers, let's be DILDOs!"