“BLUEGUM” is a valid word. — 12 points Scrabble

buglea brass instrument without valves; used for military calls and fanfares
bulgesomething that bulges out or is protuberant or projects from its surroundings
beguma Muslim woman of high rank in India or Pakistan
blume
glumesmall dry membranous bract found in inflorescences of Gramineae and Cyperaceae
umbelflat-topped or rounded inflorescence characteristic of the family Umbelliferae in which the individual flower stalks arise from about the same point; youngest flowers are at the center

blueblue color or pigment; resembling the color of the clear sky in the daytime
gluecement consisting of a sticky substance that is used as an adhesive
mulehybrid offspring of a male donkey and a female horse; usually sterile
lubea substance capable of reducing friction by making surfaces smooth or slippery
glummoody and melancholic
geumavens
lugea racing sled for one or two people

lega human limb; commonly used to refer to a whole limb but technically only the part of the limb between the knee and ankle
begcall upon in supplication; entreat
buggeneral term for any insect or similar creeping or crawling invertebrate
buma person who is deemed to be despicable or contemptible
mel
guma preparation (usually made of sweetened chicle) for chewing
mugthe quantity that can be held in a mug
gemart highly prized for its beauty or perfection
gela colloid in a more solid form than a sol
lugancient Celtic god
elmany of various trees of the genus Ulmus: important timber or shade trees
bela logarithmic unit of sound intensity equal to 10 decibels
lum
gul
emuany of various systems of units for measuring electricity and magnetism
leuthe basic unit of money in Moldova
ulu

BLUEGUM