Morning wood of abnormal size and rigidity, impossible to "tuck" away and often quite painful
Today I woke up with morning oak that I could have used to fuck a sea lion with. I thought my dick was going to explode.
by Skid Mark VZ June 06, 2007
Getting up in the morning up with the strong desire for whiskey before your fully awake.
I had a hard case of morning oak this morning but the liquor store didn't open before work.
by rm2001 May 21, 2010