man i was so cockbrain last night, i had a great time but my girlfriend kicked me in the sack this morning
when the male uses his cock as a secondary brain, often resulting in unfortunate choices and loss of girlfriend and or bodily harm caused by aforementioned girlfriend
"man i was so cockbrain last night, i had a great time but my girlfriend kicked me in the sack this morning" What is the definition of "cockbrain"?