1 definition by TiredDad

The often recurring general sickness that daycare children get from age zero to 2 years - which keeps their nose constantly running. Daycare lung typically disappears after two years when the child has built up an immunity to most germs known to mankind.
I'll be working from home tomorrow again - Madelin's daycare lung is acting up for the third time this month and she has been banned from school until her fever breaks.
by TiredDad October 5, 2009
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