Your TTL is set to 24h:
iMac-van-Bart:~ ikbenbart$ dig comegetheated.com
; <<>> DiG 9.6.0-APPLE-P2 <<>> comegetheated.com
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 40315
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 13, ADDITIONAL: 13
;; QUESTION SECTION:
;comegetheated.com. IN A
;; ANSWER SECTION:
comegetheated.com. 86330 IN A 212.95.48.105
;; AUTHORITY SECTION:
com. 82668 IN NS c.gtld-servers.net.
com. 82668 IN NS d.gtld-servers.net.
com. 82668 IN NS e.gtld-servers.net.
com. 82668 IN NS f.gtld-servers.net.
com. 82668 IN NS g.gtld-servers.net.
com. 82668 IN NS h.gtld-servers.net.
com. 82668 IN NS i.gtld-servers.net.
com. 82668 IN NS j.gtld-servers.net.
com. 82668 IN NS k.gtld-servers.net.
com. 82668 IN NS l.gtld-servers.net.
com. 82668 IN NS m.gtld-servers.net.
com. 82668 IN NS a.gtld-servers.net.
com. 82668 IN NS b.gtld-servers.net.
;; ADDITIONAL SECTION:
b.gtld-servers.net. 85051 IN A 192.33.14.30
b.gtld-servers.net. 18866 IN AAAA 2001:503:231d::2:30
c.gtld-servers.net. 29970 IN A 192.26.92.30
d.gtld-servers.net. 29666 IN A 192.31.80.30
e.gtld-servers.net. 30226 IN A 192.12.94.30
f.gtld-servers.net. 29971 IN A 192.35.51.30
g.gtld-servers.net. 2681 IN A 192.42.93.30
h.gtld-servers.net. 13633 IN A 192.54.112.30
i.gtld-servers.net. 30226 IN A 192.43.172.30
j.gtld-servers.net. 29951 IN A 192.48.79.30
k.gtld-servers.net. 30717 IN A 192.52.178.30
l.gtld-servers.net. 30225 IN A 192.41.162.30
m.gtld-servers.net. 29969 IN A 192.55.83.30
;; Query time: 4 msec
;; SERVER: 192.168.220.1#53(192.168.220.1)
;; WHEN: Fri Jun 10 15:22:07 2011
;; MSG SIZE rcvd: 495
You might want to set it to something lower (4h or so) to prevent this in the future. There is nothing you can do now however. Just wait for the DNS resolution to expire.