Queries of a Jabber Wonk

Where's it written it had to've been brillig...?
Were the toves all that slithy...? Or what...?
Did the wabe witness gyring...?
Most find gyring tiring --
though who'd not give gimbling a shot...?
Were the borogoves totally mimsy,
or proved mimsiness partial at worst...?
Did those raths label'd 'mome'
(had those mome raths no home...?)
outgribe piecemeal...? Or did they first burst...?