HELP PLEASE

OKOK SO GUYS IM TRYING TO BUY THE "HERE U ARE" MANHUA ON WISH BUT LIKE HOW AM I GONNA EXPLAIN TO MY MOM WHAT "BL" IS?? LIKE CAN SOMEONE GIVE ME A MEANING FOR IT INSTEAD OF BOY'S LOVE WHICH SEEMS BELIEVEABLE PLS AHAHAHA UM TY <3
BTW THE TITLE OF THE PRODUCT IS:
New Here U Are Comic Fiction Book D Jun Works BL Comic Novel Campus Love Boys Youth Comic Fiction Books
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TYSM ┗( T﹏T )┛