"Stow your seabag shipmate, we don't have all day."
"Jeff punched Ryan in the seabag because he was being an idiot."
"I emptied my seabag all over her face."
The skanky, wrinkled cleavage of a woman, most always over 40, that is the product of spending too many hours in the sun and not enough hours at the gym.
Our beach outing was almost perfect, marred only by so many overly-tanned women sporting skimpy bikinis that hghlighted their skeavage.