thingamabopadoohickey
High tech thingamabob or doohickey.
I could fix your sattelite receiver if I just had the right high power output thingamabopadoohickey.
thingamabopadoohickey
thingamabob or doohickey in a highly technical device.
I could fix your sattlite receiver, but I don't have the right thingamabopadoohickey to replace the burned out one.