Is this what you want? (Note the curly braces.) 

my $x = { map { $_ + 1 => (qw/Jan Feb Mar Apr May/)[$_] } 0..4 };
print map { "$_ => $x->{$_}\n" } keys %$x;

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In reply to Re: On-the-fly hashref by hbm
in thread On-the-fly hashref by oko1

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