喜当爹

Meaning

Sunflower (向日葵): Term describing fujoshi/fudanshi or CP (shipping) fans as "yellow and edible" (又黄又能嗑). Sunflowers are yellow, have edible seeds, and face the sun—wordplay on "yellow" (lewd), "ke" (eating seeds = enjoying ships), and "thinking of the sun" (having dirty thoughts).