troll1 : i no liek mudkipz, mudkipz r n00b
troll2: i liek swampertz
troll3 : noes swampertz r trollish
troll4: tr00lllls cannot squirt water u idiot
troll5: fuck you they use hydro pump not squirt water you idiot go rot in hell pig!@#$!%!@fucker
troll4: you got trolled retard
troll5: you got countertrolled troll!
These actions are different from feeding the troll as the latter involves giving the troll ammunition and sating its hunger for chaos and bedlam, whereas counter-trolling involves responding to the troll in a manner that leaves him/her with nowhere to go in terms of antagonistic actions, and will likely deter him/her from further trolling.
Note: Counter-Trolling must be done very carefully, as a desperate troll won't understand what's going on and resort to general pandemonium, resulting in combustion, turning the troll into a flamer.
TROLL: That means you like it up the ass.
TROLL: That means you have a boyfriend you faggot.
TROLL: Fuck you.
*TROLL has signed off*
COUNTER-TROLL: Awesome, now I can wrap up my activity here in peace and quiet, go home, and sleep with my wife.
*The female teacher starts reminiscing about her past*
Teacher: "Back in my day my friends used to call me shortstuff cuz I'm short."
Student's troll comment: "I wonder how long ago that was?"
*Whole classroom laughs*
Teacher's countertroll comment: "I don't know, why don't you ask your father?"
Classroom: You just got countertrolled!