Little boy lover (dictionary)
From BoyWiki
A little boy lover, or LBL, is a boylover with a low age of attraction. The exact definition of 'low age of attraction' seems to vary, usually within the single digits. AOAs may span from 1 to 9.
There is a stylized version of the BLogo called the LBLogo, which was created as a source of pride for LBLs who have at times felt marginalized by boylovers who are attracted mainly to older boys.