Судя по расположению пробоин на Спитфайре, летчик ни разу не жилец, хотя по нему этого не скажешь.
"Jerries" was a shortened form for "Germans" used by the allied soldiers during world war II. They used it because it was shorter and easier to say. Because you can't really say "Gers", the allies were saying "Jerries".