compared to other proposals is the pushing and shifting which involves a lot of copying data around.

Sure it doesn't :)

This can be done more easily by cycling through the buffer using the modulo operator on the line number of the data.

If all the data you want is at the end

my @data = ( undef, undef, qw/ bingo nameo / );
print @data[ -1,-2,-3 ];
__END__
nameobingo
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