Of course they do!
BFG rulebook even had an official Ork shanty for when they latch onto a space hulk:
’Ere we go, ’ere we go, ’ere we go,
’Ere we go, ’ere we go, throo the cosmos.
’Ere we go, ’ere we go, ’ere we go,
’Ere we go, ’ere we go, throo infinity.
’Ere we go, ’ere we go, ’ere we go,
’Ere we go, don’t know where ’til we get there.