diff --git a/commands/mon.py b/commands/mon.py
index 9b9ed4c..5231abe 100644
--- a/commands/mon.py
+++ b/commands/mon.py
@@ -20,6 +20,9 @@ class Mon:
         group2.add_argument("-p", "--append", action="store_true", dest="doAppend", help="Append entries to lists instead of replacing")
         group2.add_argument("-r", "--remove", action="store_true", dest="doRemove", help="Remove entries in lists instead of replacing")
 
+        self.parser.add_argument("--inside", action="store_true", dest="inside", help="Use x in y logic for matching instead of comparing exact values")
+        self.parser.add_argument("--outside", action="store_false", dest="inside", help="Don't use x in y logic for matching instead of comparing exact values")
+
         self.parser.add_argument("--type", nargs="*", metavar="type", dest="specType", help="Specify type of spec matching. Available types: join, part, quit, msg, topic, mode, nick, kick, notice, action, who")
         self.parser.add_argument("--free", nargs="*", metavar="query", dest="free", help="Use freeform matching")
         self.parser.add_argument("--exact", nargs="*", metavar="query", dest="exact", help="Use exact matching")
@@ -218,6 +221,8 @@ class Mon:
             cast["real"] = []
             for i in obj.real:
                 cast["real"].append(" ".join(i))
+        if not obj.inside == None:
+            cast["inside"] = obj.inside
         return cast
 
     def subtractCast(self, source, patch, info):
diff --git a/modules/monitor.py b/modules/monitor.py
index 48b01c3..7552648 100644
--- a/modules/monitor.py
+++ b/modules/monitor.py
@@ -19,12 +19,34 @@ def testNetTarget(name, target):
     if not called:
         return False
 
+def contained_in(x, y):
+    if x is None or y is None:
+        return False
+    elif x == y:
+        return True
+    else:
+        return y in x
+
+def is_in(k, vs, A):
+    return any(contained_in(A.get(k), vp) for vp in vs)
+
+def matches(A, B):
+    return all(is_in(k, vs, A) for (k, vs) in B.items())
+
 def magicFunction(A, B):
+    isInside = False
     if "send" in B.keys():
         del B["send"]
     if "sources" in B.keys():
         del B["sources"]
-    return all(A[k] in B[k] for k in set(A) & set(B)) and set(B) <= set(A)
+    if "inside" in B.keys():
+        if B["inside"] == True:
+            isInside = True
+        del B["inside"]
+    if isInside:
+        return matches(A, B)
+    else:
+        return all(A[k] in B[k] for k in set(A) & set(B)) and set(B) <= set(A)
 
 def event(name, target, cast):
     monitorGroups = testNetTarget(name, target)