#!/usr/bin/perl

use strict;
use warnings;

my @words = <DATA>;
chomp @words;
my $length = 5 + 20*rand();
{ use integer; $length += 0; }
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Why use integer for one line? The documentation for rand() shows exactly how to do the same thing with int().

for my $line (0..$length) {  #prints length + 1 lines.
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There is an off by one error here since 0 to $length is $length+1 lines.

    $line and print ".-$line.\n";
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Printing the last character on the first line of the loop is silly. You end up needing another print to put in the period for the last line.

    my $width = int( 9*rand() );
    { use integer; $width++; }
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This doesn't change $width to an integer. Refer to integer

Now, it so happens that the pre- and post- increment and decrement operators, ++ and --,
are not affected by use integer; either. Some may rightly consider this to be a bug --
but at least it's a long-standing one.

   
    for my $word ( 0..$width ) {
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Another off by one error.

    my $where = $#words * rand();
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This will never pick the last element in the array.

    { use integer; $where += 0; }
        my $choose = $words[$where];
        unless ($word) {
            $choose =~ /^(.)(.*)$/;
            $choose = uc($1) . $2;
        }
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If you don't want to use ucfirst() then s/^(.)/\u$1/ would be simpler.

        $word and $choose = " $choose";
        print $choose;
    }
}
print ".\n";
__DATA__
2
1080
&c
10-point
10th
11-point
12-point
etc. for rest of English words
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