No definitions found for 'rulebook slowdown'
Perhaps one of these:
rule of court,
rauwolfia serpentina,
riley b king,
roll back,
royal pheasant,
rule of coss,
relapser,
relapse,
rule of grammar,
raia laevis,
rule of cy pres,
relapsing,
rollback,
relapsing fever,
relapsed,
ralph johnson bunche,
rauli beech,
rule book