Drunk Lag
A physiological condition, characterized by fatigue, irregular sleep patterns, and headache, which follows a long night of drinking. Symptoms may be similar to those of 'jet lag,' but are not the result of traveling between time zones.
"Where have you been? I've tried calling you all day."
"Major drunk lag. I woke up at 5 PM."
"Major drunk lag. I woke up at 5 PM."