You're asking for the impossible, or if it is, it's going to be an ugly mess. Sure, it's nice to get a simple result that doesn't use extra variables, but if it becomes unreadible, then you're going to confuse others as to the meaning of your code. In this case, using a temporary hash is not going to increase your memory usage save for maybe an extra byte if you create a reference to the hash, and the code will be much easier to read.

But here's another solution that doesn't use any extra variables beyond $_:

use Data::Dumper;
my @names = qw ( web email stuff );
my @values = qw( 33 44 55 );
my $ref = { map { $names[$_] => $values[$_] } (0..$#names) };
print Dumper $ref;
[download]

(It's still not as clean as using the hash slice, IMO, but if that's what you want...)

-----------------------------------------------------
Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain
"I can see my house from here!"
It's not what you know, but knowing how to find it if you don't know that's important