Non credo esista niente di quello che tu chiedi, prova così:
codice:
Private array_array1() As String = {"lalala", "lalalala"}
Private array_array2() As String = {"papapa", "papapapa", "cucucu"}
Private array_array() As Array = {array_array1, array_array2}
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim ars As Array
Dim i As Integer
Dim j As Integer
For i = 0 To array_array.Length - 1
ars = array_array(i)
For j = 0 To UBound(ars)
Console.WriteLine(ars(j))
Next
Next
End Sub