suca boy Share definition Flag a person who is lame and full of sh*t. a person who is weak minded and deserves no respect. I asked John to come with me to the club and he acted like he did not hear me. He is such a suca boy. suca boy by willdathrill April 10, 2007 0 0 Get merch Get the suca boy mug. Buy Now — $32.95 See more merch