[colechristensen]

I don't think this one is going to make it into English. Vorführeffekt is a bit hard to pronounce.

[jszymborski]

Doesnt seem that hard to mangle into english:

Vore-fyur-effect

[skirmish]

Fohr-fyur-effect [ˈfoːɐ̯fyːɐ̯ʔɛˌfɛkt]

Letter 'v' is called "fow" in German and is pronounced as sound "f".

[wjholden]

The "v" is pronounced as an "f" in German. So, "fore-fyur-effect." English speakers could say "forfeit effect" a few times and then change the middle syllable.