Other possible rhymes for grandmom
`amum
absoluteminimum
acanthocardamum
acanthospermum
acrospermum
aframomum
agamemn
agathisanthemum
ageoldmaximum
aizoanthemum
allantospermum
alloispermum
amorphospermum
amum
anomospermum
antimaximum
arctanthemum
argamum
argyranthemum
armmom
armymom
arthrocnemum
askmom
ataminimum
atthebaerminimum
aulacospermum
auximum
baliospermum
bamum
bareminimum
basamum
bayerminimum
bearminimum
birminghamham
blepharispermum
brachanthemum
bramham
bromham
bummm!
callianthemum
camom
campylospermum
cardamom
chamum
chrysanthemom
chrysophthalmum
ciclospermum
cinamom
climacostomum
climm
cliostomum
coelospermum
collospermum
comospermum
conospermum
coolmom
corispermum
craspidospermum
craterispermum
crysanthemum
cylindrospermum
dadormom
datemymom
decaspermum
denmom
discospermum
drmom
drosanthemum
elachanthemum
elateriospermum
elmham
endospermum
erimem
eriospermum
ex-stepmom
existensminimum
f.godmom
galactosomum
geissospermum
glemham
gloeospermum
gongrospermum
gonospermum
gonyostomum
grandmum
gymnanthemum
gymnostomum
hakmem
halocnemum
hedyosmum
heymom
himom
hockeymom
homalospermum
hypoblemum
idiospermum
imadeitmyselfmom
inmem
ischaemum
itoldmymom
kalumum
keepmum
keepsmum
keptmum
lachnospermum
lasiospermum
leucospermum
libumem
limm
listentoyourmom
lobisomem
lophospermum
macrocnemum
macrostomum
marmem
marsippospermum
mauranthemum
mesanthemum
microcnemum
microspermum
minimum-maximum
mrmom
mymom
myrospermum
narasimham
nemom
neocinnamomum
newmom
nipponanthemum
njimom
nomom
nonminimum
octomom
octospermum
odontostomum
ohmmm
optimummum
osteospermum
otospermum
partmaximum
pawgammm
phenakospermum
phymaspermum
physocnemum
placospermum
podospermum
podostemum
poikilospermum
polypremum
privatissimum
pseuderanthemum
pseudoblepharispermum
psorospermum
queenmum
rhodanthemum
rhynchospermum
semum
serialmom
shockermom
siliquamomum
singlemom
soccermom
sphinctospermum
spiraeanthemum
stagemom
stammham
stepmom
stereospermum
subminimum
supermaximum
swissmem
synamom
tayammum
teenmom
thebankofmum
thrixspermum
thyrsanthemum
tigermom
tomom
topmem
trachyspermum
trigonospermum
tripleurospermum
tunkramom
tutankhamum
twodrinkminimum
vazgecmem
verjamem
virtualmum
wawmum
xylanthemum
yemem
yesmom