THE AFL has put Damien Hardwick on notice for his comments relating to umpiring decisions on Friday night, with the League's football boss Greg Swann calling the Suns coach personally to address his post-match outburst.

It is understood Swann rang Hardwick on Monday morning to express his disappointment in the comments, although the Gold Coast coach has not been fined and is not expected to be punished further for his words.

A repentant Hardwick admitted on Monday night he was a "horrible loser" who had let his emotions get the better of him after the defeat against the Cats. 

"I'm a horrible loser ... my mother has said that. I spoke to her again tonight and she always says, 'You've never tolerated losing well'."

Hardwick said was grateful for how Swann handled the issue.

"Swanny's a cracker. You've got to love him and that's why he's a great football person," he said.

"He's doing his job and obviously the umpires were disappointed. I have to be better with that.

"To his credit, he was very understanding of my point. But he made it very, very clear, Swanny, that I (overstepped) the mark.

"I commend him on his way that he does go about it - having the conversation, no need for emails, no need for letters, just a man-on-man conversation. So I really appreciate it - the point was very well made by the great man." 

Speaking after the match on Friday night, Hardwick compared GMHBA Stadium to the Roman Colosseum and suggested that umpires were waiting for a reaction from the crowd before making their decision on several incidents.

"What do you reckon?" Hardwick replied when asked if he was frustrated.

"At the end of the day, it was like the Roman Colosseum. The crowd would do this [motions his thumbs down] and all of a sudden it was a free kick. It is what it is, a home ground advantage. We understand that. You know you're up against it from the start.

"A couple of them, I thought, weren't there."

Gold Coast lost the free kick count 20-24 on Friday night, with Hardwick also taking aim at the direction of the AFL's new last disposal out of bounds rule during his side's disappointing 45-point defeat.

Hardwick also called on the League to amend the interpretation of the 'lasso rule', saying players shouldn't be penalised for a last disposal if the ball "indiscriminately" comes off their foot before going out of play.

"I don't know, that's not what the rule is there for. If someone kicks it out of bounds, absolutely. But if you knock it off someone's foot and we're looking at that, they need to change that. That's an easy change," Hardwick said.

"I don't know if it's a different understanding, I just think it's a modification they can make. I think it's a ridiculous look. The ball can accidentally trickle off a guy's toe that's been hit into ... it's not as if he's deliberately trying to kick it out of bounds.

"It's not the reason we won or lost, but they change a lot of things. Just change that."

Gold Coast's defeat to Geelong was its third consecutive loss, with the Suns now spiralling to ninth on the ladder with a 7-6 record and sitting one game outside the top six and one game inside the wildcard spots.