These are mostly sounds that have some meaning associated with them that I'm trying to fit into my daily lexicon.
Ara Ara: Oh oh.
Ara Ara Ma Ma: Oh my oh my.
Uuuughhhh Sui-pasu!: Ummmm Sour!
Gao: Onomatopoeia for a baby dinosaur from the anime AIR, I use it when I'm whining.
Uguh: Sound made by Tsukimiya Ayu whenever she encounters something undesirable.
Gaku: Onomatopoeia for death/defeat.
Peace out from Bo-san!